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Heat Exchanger, Pentair MasterTemp/Max-E-Therm 400, Nat./LP

Marsoni M251S
Sale price$684.55
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Get it in 3 business days with 1 day shipping. Friday, May 29
Heat Exchanger, Pentair MasterTemp/Max-E-Therm 400, Nat./LP77707 0234 Heat Exchanger, Pentair MasterTemp Max E Therm 400, Nat. LP This tube sheet coil assembly kit is designed to use with Pentair MasterTemp pool and spa heater models 400NA, 400LP and also compatible with Pentair Sta Rite Max E Therm pool and spa heater model 400. It includes 400k BTU coil, silicone, o rings.
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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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4.7 ★★★★★
Based on 136 reviews
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Nicole Miller
Birmingham, US
★★★★★ 3
Smaller than I thought
Size: B 1PCS, Color: Black
Smaller than I thought. So I ordered a bigger one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2026
D
Verified Purchase
Dewania Sanders
Charlottesville, US
★★★★★ 5
Works good
Size: B 1PCS, Color: Black
I purchased one other one that was a lot more expensive than this one and I do love this one. It works great.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
A
Verified Purchase
April Klegin
New York, US
★★★★★ 5
Space saver
Size: A 1PCS, Color: Black, Size: A 1PCS, Color: Black
Fits perfect by my sink. All my items worked in there. The only thing is I had to use zip ties to hold bar on for hanging my dishcloth.
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Reviewed in the United States on May 26, 2026
D
Verified Purchase
D. Peterson
Louisville, US
★★★★★ 5
Great for organization
Color: A-silver
This looks great and absolutely declutters my sink area. Has a tray to catch runoff water. Made very well. Super pleased.
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Reviewed in the United States on April 22, 2026
T
Verified Purchase
T.S.
Lexington, US
★★★★★ 5
Genius compact storage solution
Color: A-silver
This basket is cute, clean, & Clever. It holds the necessities without bulk or clutter. There is a drainage tray to pull out & rinse & the whole thing is dishwasher safe.
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Reviewed in the United States on April 1, 2026

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