Indoor Vent Adapter, Hayward Uni H250FD, 6

Indoor Vent Adapter, Hayward Uni H250FD, 6", Neg. Pressure

Marsoni

M251S

$166.70

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

Indoor Vent Adapter, Hayward Uni H250FD, 6", Neg. PressureUHXNEGVT12506 Indoor Vent Adapter, Hayward Uni H250FD, 6", Negative Pressure Hayward UHXNEGVT12506 Negative Pressure Indoor Vent Adapter for Universal H Series H250 Heaters 6". The Universal H Series is an energy efficient, high performance, installation adaptable commitment to the pool service professional.

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Used it in a pinch for stater relay... it works great. Be aware... Mine required metric sockets for the nuts... 10mm for large terminals - 3/8 was too tight and same for smaller terminals 7mm fit better than 5/16 that was too loose. The mounting holes are also spaced closer together than the OEM on a mercruiser 260 in a mid 1980's boat but easy to remedy with a 1/4" drill bit.

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Reviewed in the United States on August 4, 2023

Verified Purchase

Don

Carnegie, US

★★★★★ 5

Fixed 4.3 Merc IO

Size: 96158T-1PCS

Engine wouldn't start reliably or consistently. I had no clicking either from the old solenoid even though it would start from time to time...motor starts perfect after install. Pretty easy install as long as you reconnect the right wires. This worked perfect!

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Reviewed in the United States on August 8, 2023

Verified Purchase

Mr Sexy

San Leandro, US

★★★★★ 5

Quality

Size: 96158T-2PCS

Worth the money. Quality. Fit good. Easy too install.

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Reviewed in the United States on September 21, 2025

Verified Purchase

Amazon Customer

Waukegan, US

★★★★★ 5

Solenoid replacement

Size: 96158T-2PCS

No changes were needed, fit exactly as the oem. Happy Happy.

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Reviewed in the United States on September 10, 2025

Verified Purchase

SOmeone

Grantham, US

★★★★★ 1

Did not work.

Size: 96158T-2PCS

I went to double check that I can read but it says 35hp-275hp and it sure didn’t work on my 200ho mercury so I do not recommend. If you’re on a time crunch don’t push your luck buy OEM like I am doing right after this review.

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Reviewed in the United States on May 13, 2026