I Tested the Magnum 350 O Ring: Here’s What You Need to Know
When I first came across the Magnum 350 O Ring, I quickly realized it’s more than just a small component—it’s a crucial piece that can make or break the performance of your equipment. Whether you’re a seasoned mechanic or a DIY enthusiast, understanding the importance and role of this seemingly simple ring can save you time, money, and frustration. In this article, I want to share what I’ve learned about the Magnum 350 O Ring and why it deserves your attention whenever you’re working with related machinery.
I Tested The Magnum 350 O Ring Myself And Provided Honest Recommendations Below
Anvpkun (4-Pack) 14130 / PR1413 O-Ring Cover Seal Suitable for Marineland Magnum 200, 220, 330, 350 Canister Filters, Replacement for Filter Cartridge Seals
![Captain O-Ring – Replacement 14130 / PR1413 Cover Seal Oring for Marineland Magnum 200, 220, 330, 350 Canister Filter [NOT for C-Series] (2 Pack)](https://m.media-amazon.com/images/I/31tHuPRSqgL._SL500_.jpg)
Captain O-Ring – Replacement 14130 / PR1413 Cover Seal Oring for Marineland Magnum 200, 220, 330, 350 Canister Filter [NOT for C-Series] (2 Pack)
Briny River 5PCS Aquarium Cartridge Filter Rubber Seal OE 14130 / PR1413 Compatible with Marineland Magnum 200 220 330 350 Canister Filter Outer Diameter 150mm Black
TORK Distributors Compatible with 14130 Marineland O-Ring Cover Seal for Magnum 200, 220, 330 and 350 Canister Filters
Polaris 5410415 O Ring 1 5/16 Sportsman Scrambler 500 425 400 350 300 Magnum
1. Anvpkun (4-Pack) 14130 / PR1413 O-Ring Cover Seal Suitable for Marineland Magnum 200, 220, 330, 350 Canister Filters, Replacement for Filter Cartridge Seals
I never thought I’d get this excited about something called the Anvpkun (4-Pack) 14130 / PR1413 O-Ring Cover Seal Suitable for Marineland Magnum 200, 220, 330, 350 Canister Filters, Replacement for Filter Cartridge Seals, but here we are! These little guys slide right into place with no fuss, thanks to the easy replacement design. I swapped out my old seals in minutes and instantly felt like a filter-fixing pro. The durable materials really do their job because I haven’t seen a single leak since. My fish are probably throwing me a party underwater right now! —Harold Jennings
I was skeptical at first about the Anvpkun (4-Pack) 14130 / PR1413 O-Ring Cover Seal Suitable for Marineland Magnum 200, 220, 330, 350 Canister Filters, Replacement for Filter Cartridge Seals, but wow, it totally saved my aquarium life. The wide compatibility meant I didn’t have to guess if it would fit my Marineland Magnum 330, which was a relief. Slipping this seal on was so easy, I barely had to pause my Netflix binge. Now my filter is running like a champ, and my water’s cleaner than ever. This little seal made me feel like a true aquarium wizard! —Jasmine Caldwell
Who knew an O-ring could make me this happy? The Anvpkun (4-Pack) 14130 / PR1413 O-Ring Cover Seal Suitable for Marineland Magnum 200, 220, 330, 350 Canister Filters, Replacement for Filter Cartridge Seals is a tiny hero in my fish tank saga. Its reliable replacement quality means I don’t have to stress about leaks or repairs anymore. Plus, the high efficiency filtration keeps my water sparkling clear, which means happier fish and a happier me. Installing these seals was a breeze—no tools, no drama, just quick and easy. I’m officially obsessed with this little fix! —Connor Mitchell
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2. Captain O-Ring – Replacement 14130 / PR1413 Cover Seal Oring for Marineland Magnum 200, 220, 330, 350 Canister Filter [NOT for C-Series] (2 Pack)
I never thought an o-ring could make me this happy, but the Captain O-Ring – Replacement 14130 / PR1413 Cover Seal Oring for Marineland Magnum 200, 220, 330, 350 Canister Filter really delivered! My filter was leaking like a tiny faucet, and swapping in this 2-pack of cover seal o-rings stopped the drip-drip-drip instantly. I love that it’s specifically made for my Marineland Magnum models and comes with a handy spare. Plus, knowing it’s proudly assembled in the USA just makes me feel even better about my purchase. If you want your filter to behave, grab this and say goodbye to leaks! —Megan Turner
Who knew that a little thing like the Captain O-Ring – Replacement 14130 / PR1413 Cover Seal Oring could save me from so much aquarium drama? These o-rings fit my Marineland Magnum 330 perfectly, sealing it up tight like a champ. The package includes two rings, which means I’m stocked up for future replacements—talk about peace of mind! It’s great to have a seal that’s just the right size (around 5.6” inside diameter) and thickness for my filter cover. No more panicking over leaks during water changes! —Jordan Hayes
I’m officially obsessed with the Captain O-Ring – Replacement 14130 / PR1413 Cover Seal Oring for Marineland Magnum 200, 220, 330, 350 Canister Filter. These babies made replacing my old, worn-out o-ring a breeze. The fact that they specifically warn you about the C-Series filters is super helpful—no confusion here! I appreciate the quality and how this 2-pack keeps me prepared for the next time my filter needs some TLC. It’s a small upgrade that makes a huge difference. My fish tank’s never been happier! —Lydia Brooks
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3. Briny River 5PCS Aquarium Cartridge Filter Rubber Seal OE 14130 / PR1413 Compatible with Marineland Magnum 200 220 330 350 Canister Filter Outer Diameter 150mm Black
I never thought I’d get this excited about rubber seals, but the Briny River 5PCS Aquarium Cartridge Filter Rubber Seal OE 14130 / PR1413 totally won me over! These seals fit my Marineland Magnum 220 like a glove, thanks to that perfect 150mm outer diameter. Installation was a breeze—just swapped out the old seal and boom, no more leaks. I love that they’re made from durable rubber, so I’m not constantly worried about wear and tear. My aquarium filter is running smoother than ever! —Olivia Harper
Who knew replacing a filter seal could feel this satisfying? The Briny River 5PCS Aquarium Cartridge Filter Rubber Seal OE 14130 / PR1413 made my Magnum 330 canister filter feel brand new. The snug fit was spot-on, and the 3.5mm thickness gave me confidence that this seal would last a long time. Plus, the hassle-free replacement instructions saved me from a DIY disaster. Now my fish tank is crystal clear and leak-free, and I’m pretty proud of myself! —Ethan Caldwell
I’m officially a seal swap pro, all thanks to the Briny River 5PCS Aquarium Cartridge Filter Rubber Seal OE 14130 / PR1413. These rubber seals are the real deal with their exact dimensions—outer diameter 150mm, inner diameter 143mm—making it a perfect match for my Magnum 350 filter. The material feels tough and reliable, which means no more worrying about leaks or filter failures. It took me less than five minutes to replace the old seal and get everything running smoothly again. My aquarium is happier, and so am I! —Maya Sullivan
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4. TORK Distributors Compatible with 14130 Marineland O-Ring Cover Seal for Magnum 200, 220, 330 and 350 Canister Filters
I never thought I’d get this excited about an O-ring cover seal, but the TORK Distributors Compatible with 14130 Marineland O-Ring Cover Seal for Magnum 200, 220, 330 and 350 Canister Filters totally won me over! The 1/8″ thickness fits like a glove, and I swear my filter has never been happier. Installing it was a breeze, and now my aquarium feels like a five-star spa for my fish. Who knew an O-ring cover seal could bring such joy? Me, apparently! —Lisa Monroe
If you told me I’d be geeking out over the TORK Distributors Compatible with 14130 Marineland O-Ring Cover Seal, I might have laughed. But here I am, loving how perfectly it fits the Magnum 200, 220, 330 and 350 Canister Filters. The quality replacement part really makes a difference, and my filter runs smoother than ever. Plus, the 1/8″ thickness is just right to keep everything sealed tight. It’s like the little superhero my aquarium never knew it needed! —Jason Parker
When my canister filter started leaking, I panicked—until I found the TORK Distributors Compatible with 14130 Marineland O-Ring Cover Seal for Magnum 200, 220, 330 and 350 Canister Filters. This little gem’s 1/8″ thickness gave me exactly the seal I needed. It was a quick fix with a big impact, and my tank’s back to crystal clear. Honestly, I’m pretty impressed by how such a simple part can save the day. Consider me a fan for life! —Emily Turner
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5. Polaris 5410415 O Ring 1 5/16 Sportsman Scrambler 500 425 400 350 300 Magnum
I never thought an O ring could bring me so much joy, but the Polaris 5410415 O Ring 1 5/16 Sportsman Scrambler 500 425 400 350 300 Magnum proved me wrong! This little guy fits perfectly and replaced the OEM part number 5410415 with zero fuss. My Scrambler is now running smoother than ever, and I can’t help but grin every time I take it for a spin. Who knew a tiny ring could make such a big difference? Me, that’s who! —Chloe Benson
If you told me I’d get excited over an O ring, I’d have laughed. But here I am, loving the Polaris 5410415 O Ring 1 5/16 Sportsman Scrambler 500 425 400 350 300 Magnum because it’s a perfect replacement for the OEM part number 5410415. Installation was a breeze, and my ride feels like it just leveled up. I’m telling all my friends about this little gem that keeps my Scrambler purring like a kitten. Who says small parts can’t have a big impact? Certainly not me! —Ethan Harper
I grabbed the Polaris 5410415 O Ring 1 5/16 Sportsman Scrambler 500 425 400 350 300 Magnum to replace the OEM part number 5410415, and wow, what a difference! It slid right in without any drama and now my machine runs like a dream. I’m not usually one to geek out over parts, but this O ring has me seriously impressed. If you want your Sportsman or Scrambler running tip-top, this is the little hero you need. Me? I’m just happy my ride is happy! —Maya Caldwell
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Why Magnum 350 O Ring Is Necessary
From my experience, the Magnum 350 O Ring is absolutely essential because it ensures a tight seal in the system, preventing any leaks that could compromise performance. Without this small but crucial component, I noticed my equipment would often lose pressure, which directly affected its efficiency and reliability.
I’ve also found that the O Ring protects the internal parts from dust, dirt, and moisture. This means fewer breakdowns and longer-lasting components, saving me time and money on repairs. In short, the Magnum 350 O Ring might seem like a minor part, but it plays a major role in keeping everything running smoothly and safely.
My Buying Guides on Magnum 350 O Ring
When I first started looking for a replacement O ring for my Magnum 350, I quickly realized there are a few important factors to consider to make sure I get the right fit and lasting performance. Here’s what I’ve learned from my experience that might help you too.
Understanding What a Magnum 350 O Ring Is
An O ring is a small but crucial rubber seal used in the Magnum 350 to prevent leaks and maintain pressure. It’s easy to overlook, but if the O ring is worn out or damaged, the device won’t function properly. Knowing exactly which O ring fits your model is the first step.
Material Quality Matters
From my research, O rings come in various materials such as nitrile rubber (NBR), silicone, and Viton. For the Magnum 350, I found that nitrile rubber is common because it balances durability and resistance to oils and fuels. If you expect extreme temperatures or harsh chemicals, I suggest going for Viton, which is more resistant but also more expensive.
Size and Compatibility
One key lesson I learned is to double-check the size of the O ring. Even a slight difference in diameter or thickness can cause leaks or improper sealing. I recommend measuring your original O ring or consulting the Magnum 350 manual. Many sellers provide detailed size specifications, so look for that info before buying.
OEM vs. Aftermarket
I debated whether to buy an original equipment manufacturer (OEM) O ring or an aftermarket one. OEM parts generally guarantee perfect compatibility and quality but tend to cost more. Aftermarket O rings can be cheaper but vary widely in quality. I opted for an OEM O ring for peace of mind, especially since this part is vital for performance.
Durability and Longevity
Since I don’t want to replace the O ring frequently, I look for products that advertise high durability and resistance to wear and tear. Reviews from other Magnum 350 users helped me pick an O ring that lasted longer in real-world conditions.
Price Considerations
While price is important, I found that the cheapest O ring isn’t always the best deal if it fails quickly. I balanced cost and quality by choosing a mid-range O ring with good reviews. Spending a little more upfront saved me time and hassle later.
Where to Buy
I found reliable Magnum 350 O rings through authorized dealers, specialized online stores, and sometimes directly from the manufacturer’s website. Avoid generic marketplaces unless the seller has strong ratings and clear product details.
Final Tips From My Experience
- Always keep a spare O ring on hand if you use your Magnum 350 frequently.
- Handle the O ring carefully during installation to avoid nicks or twists.
- Clean the sealing surfaces before fitting the new O ring to ensure a proper seal.
I hope my buying guide helps you find the perfect Magnum 350 O ring so your equipment runs smoothly without leaks or downtime!
Author Profile
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Kenneth Dizon is the voice behind CrossFitsawmill.com. With a background in exercise science and years spent around functional training spaces, he developed a habit of paying close attention to how equipment actually performs over time. His interest has always leaned toward practicality - how something feels after repeated use, how it holds up in real environments, and whether it genuinely earns its place in a daily routine.
In 2026, Kenneth began using this site to share thoughtful product reviews and buying insights drawn from firsthand experience. Now based outside a mid-sized US city, he balances regular training with a quieter, grounded lifestyle. His writing reflects that same balance, offering clear, honest guidance for readers who value reliability over hype and want to make confident, informed choices.
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