77707-0119 Pentair Coil Sealing O-Ring Kit | MasterTemp & Max-E-Therm 400 Heater Tube Sheet | 12 Pack

77707-0119 Pentair Coil Sealing O-Ring Kit | MasterTemp & Max-E-Therm 400 Heater Tube Sheet | 12 Pack

Marsoni

M251S

$45.99

Get it in 3 business days with 1 day shipping. Friday, May 29

77707-0119 Pentair Coil Sealing O-Ring Kit | MasterTemp & Max-E-Therm 400 Heater Tube Sheet | 12 PackSeal every tubesheet connection on your 400 series heater with the Pentair Coil Tubesheet Sealing O Ring Kit (77707 0119), designed for MasterTemp and Max E Therm 400 heaters. Packaged as a generous 12 pack, these precision cut O rings provide comprehensive sealing across all tubesheet points, blocking leaks and maintaining proper system pressure. Each seal is formed from advanced elastomeric material that stays flexible and resilient through extreme

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My dog loves these! I have purchased several. The size is perfect for my 25-pound cockapoo. It’s durable and she chews them for months until they’re prickly and not as fun anymore. The price is reasonable enough and she loves them so well (they’re one of the two chew toys that she likes), so I feel like the cost is worth it. One thing to note is that my dog does chew off tiny bits from the bone. She usually spits them out but has swallowed some bits here and there. There hasn’t been a situation with the swallowed pieces, but I always monitor her as she uses it and would suggest that for other pet owners also. Safety is always key, but we have never had any problems in the two years I’ve been buying them.

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Reviewed in the United States on September 2, 2025

Verified Purchase

Chuck

Los Angeles, US

★★★★★ 5

Golden approves

Flavor Name: Peanut Butter, Size: Medium

Golden approves. Good size. Durability is hard, she did end up chewing the heck out of it. Great for puppies.

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Reviewed in the United States on May 17, 2025

Verified Purchase

Randa

Louisville, US

★★★★★ 1

Don't recommend for any type of chewers

Flavor Name: Peanut Butter, Size: Medium

Same product, don't recommend due to slicing of material. My pup is a chewer and he was a 4mo old Chug at the time. Not worth my worrying about him swallowing plastic

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Reviewed in the United States on June 4, 2026