77707-0118 Pentair Coil Sealing O-Ring Kit | MasterTemp & Max-E-Therm 300 Heater Tube Sheet | 10 Pack

77707-0118 Pentair Coil Sealing O-Ring Kit | MasterTemp & Max-E-Therm 300 Heater Tube Sheet | 10 Pack

Marsoni

M251S

$39.99

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

77707-0118 Pentair Coil Sealing O-Ring Kit | MasterTemp & Max-E-Therm 300 Heater Tube Sheet | 10 PackEliminate tube sheet leaks and restore your heater's sealing integrity with the Pentair Coil Tube Sheet Sealing O Ring Kit (77707 0118), built for MasterTemp and Max E Therm 300 heaters. This 10 pack of factory spec O rings delivers complete tube sheet coverage, creating a pressure tight seal that prevents water seepage and energy waste. Each O ring is produced from industrial grade rubber compounds that resist heat fatigue and chemical attack,

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We recently had our first camping trip with our ‘84 RV at a local state park. prior to the camping trip, it had rained a lot. At this park, parking is on grass. I was nervous the heavy RV would sink and we would get stuck so I found these. It was packaged nicely. Easy to figure out how to use. It took a bit to get the RV to back over them but was good once it did. Color is bright. They were stable. A few did “bow” we noticed after we grabbed them out. Came in a nice storage bag and light to carry.

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Reviewed in the United States on July 2, 2024

Verified Purchase

SanAntonioMan

Louisville, US

★★★★★ 5

Good product

Style: Levelers, Size: 10 Pack

I am a truck camper that camps about 4 months of every year and use these blocks to level my truck at each of the various sites I camp. They stack and are stored in a bag so take limited space. The blocks are easy to use, quick to deploy, are fairly durable and work well - I love them! They are a little pricy but worth it to me.

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Reviewed in the United States on August 7, 2025

Verified Purchase

Ronnie Reese

Carnegie, US

★★★★★ 5

Great Product

Style: Levelers, Size: 10 Pack

Item as advertised and arrived in great condition!

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Reviewed in the United States on May 1, 2026

Verified Purchase

Mike

Battle Creek, US

★★★★★ 5

Great stabilizer

Style: Levelers, Size: 20 Pack, Style: Levelers, Size: 20 Pack

Very light, seem very sturdy and lock together snuggly. Instead of carrying heavy wood to support, now I can use the light weight levelers. Tested multiple times to make sure they could hold, so far no issues going up and down.

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Reviewed in the United States on May 1, 2026

Verified Purchase

eclectic epileptic

Grantham, US

★★★★★ 5

Buy it you wont regret it.

Style: Corded

great product. works astonishingly well for such an inexpensive tool. Needed to cut some brass tubes and metal flex drive cable for some boat props. this gadget worked wonders.

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Reviewed in the United States on April 17, 2026