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Pentair Switch Membrane for Max-E-Therm & MasterTemp Heaters — Part 42002-0029Z

Marsoni M251S
Sale price$125.99
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Pentair Switch Membrane for Max-E-Therm & MasterTemp Heaters — Part 42002-0029ZThe Pentair Switch Membrane 42002 0029Z is a genuine replacement component engineered for Sta Rite Max E Therm and Pentair MasterTemp pool and spa heaters. Functioning as the main user facing interface on the heater control panel, this membrane delivers precise input recognition and seamless navigation through all heater settings. Each button is distinctly labeled and tactile, providing dependable control even after years of regular use. Built to
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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4.4 ★★★★★
Based on 135 reviews
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Product Reviews
S
Verified Purchase
St
Louisville, US
★★★★★ 3
Dog loves it, but it comes apart pretty quick.
Size: One Size
The dog loved chasing it and playing tug-of-war, but it lasted less than 30 days. If the outer rubber portion of cover was thicker, or all canvas material, it would probably last for a few months of rough play. May buy again if I can't find something similar to try.
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Reviewed in the United States on August 4, 2025
J
Verified Purchase
Jenna Bacon
Natrona Heights, US
★★★★★ 5
Fun for my puff ball lover
Size: 30 Pcs
The gun is very cheaply made and sometimes shoots when the trigger isn't pulled. But my puff ball loving monster seems to love it and all his new puff balls. He was literally jumping with joy.
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Reviewed in the United States on February 8, 2026
K
Verified Purchase
Kim K
West Palm Beach, US
★★★★★ 5
What a great cat toy!
Size: 100 Pcs
So I bought two of these. One for me and the house cat and one for my niece and her garage/indoor cat. My cat is nearing her 16th year in the world and loves attacking these balls…when she is in the mood and not sleepy. They are great to throw at her, as she will bat at them or catch and bite them. They are super light weight and will not hurt the cat even when triggered by the gun. The gun will launch the ball a good yard or so, but it’s much more interesting if you angle it up and towards the cat as they will watch and attack as it falls. I have tried endlessly to make a video but she stops every time I hit record. It’s not just with this toy but with anything I try and catch her doing…hit record and she is suddenly on her best behavior or walks away. :/ I recommend this product for bored household cats and I think even the young ones would have more fun with it. I should mention that the gun noise might be a bit jarring to cats, but if you put a small hair tie (like the small clear ties) around the back pull- piece (this is the piece you pull back to cock the gun and put a soft ball in the chamber) it mutes the sound of the gun being fired. Overall, the cat and I are happy with this product.
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Reviewed in the United States on January 27, 2024
M
Verified Purchase
Michelle Ruiz
Houston, US
★★★★★ 4
Good toy for Kittens
Size: 30 Pcs
Seemed safe to play with your cat. Entertain to have them chase . Cute to seem cats hunt.
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Reviewed in the United States on December 29, 2025
S
Verified Purchase
Shelia I.
Chelsea, US
★★★★★ 5
Stormie approved.
Size: 30 Pcs
Stormie loves this!! Cute, fun, fair price
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Reviewed in the United States on February 11, 2026

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