★★★★★ 5
Work good
Style: One Piece
Fit and work perfectly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
475998 Thermal Fuse by Pentair | ETI 400 Gas Pool Heater Safety Fuse
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
475998 Thermal Fuse by Pentair | ETI 400 Gas Pool Heater Safety FuseProtect your pool heating equipment with the Pentair Thermal Fuse 475998, a factory original safety component engineered to sever the electrical circuit when heater temperatures climb to dangerous levels. This protective device activates at 187 F (86 C), instantly cutting power to guard against overheating and potential equipment damage. Once triggered, this single use fuse requires complete replacement rather than resetting, guaranteeing that the
Quick Dispatch:
Your 475998 Thermal Fuse by Pentair | ETI 400 Gas Pool Heater Safety Fuse orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
Order Tracking:
You'll receive a tracking link by email once your 475998 Thermal Fuse by Pentair | ETI 400 Gas Pool Heater Safety Fuse ships.
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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.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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4.3 ★★★★★
Based on 2042 reviews
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Product Reviews
★★★★★ 5
WHAT A MARVELOUS AIR FILTER.
Style: Two Pieces
SO FAR THESE FILTERS ARE MARVELOUS. THESE FILTERS ARE WELL MADE ESPECIALLY FOR THE PRICE. LOOKS LIKE A SIGNIFICANT $$$$ SAVINGS. TMP.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 9, 2026
★★★★★ 4
OEM quality
Style: One Piece
Good quality replacement. Perfect fit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2025
★★★★★ 5
Exact fit, no trimming needed
Style: One Piece
Ordered this for my Ford F-150 and it dropped right into the airbox perfectly — same dimensions as the OEM filter, same end seals, same fit. No gaps, no air bypass around the edges. Clean swap in under five minutes. Engine runs smooth and the price is unbeatable.
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Reviewed in the United States on May 11, 2026
★★★★★ 5
very nice product
Style: Two Pieces
It fits perfectly. Easy to install.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 15, 2026
