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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It doesn’t hold charge too long , especially if it’s not on a perfectly bright sunny day without clouds. Even at that , It will only be able to light up for maybe two or three hours at best , and not very bright at all. Construction and materials are of good quality that’s why the one start or else zi would gave given a zero if i could. it is way overpriced for what it is. I am disappointed for what I paid and the amount of production I get from it. Would have returned it if I haven’t installed them and threw away the boxes.

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Reviewed in the United States on December 9, 2025

Verified Purchase

Twist

New York, US

★★★★★ 5

Quality enclosure and battery. Looks great.

Number of Items: 4

Quality metal enclosure. Look great. Two color levels. Charge even in indirect sunlight just fine. I have now bought 12 of these lights.

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Reviewed in the United States on November 1, 2025

Verified Purchase

Mary

Charlottesville, US

★★★★★ 5

Very durable and designed to last a long time

Number of Items: 2

I've had a pair of these lights for 7-8 years and would still be using them with no issues if a naughty racoon hadn't taken an interest in them and broken the glass on one of them. I was delighted to find that the identical looking ones (operate slightly differently) were still available. They are extremely simple to put together (just screw together the durable metal pieces) and turn them on to the chosen brightness. It couldn't be much simpler. I also have other Gama Sonic solar lights and they are every bit as good.

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Reviewed in the United States on May 4, 2024