Pentair Clamp Knob for Purex & WhisperFlo Pumps - Part 071136Z

Pentair Clamp Knob for Purex & WhisperFlo Pumps - Part 071136Z

Marsoni

M251S

$29.99

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

Pentair Clamp Knob for Purex & WhisperFlo Pumps - Part 071136ZThe Pentair 071136Z clamp knob is a genuine factory replacement designed to fasten filter and pump lids on Pentair Purex SM SMBW 2000 and 4000 series filters as well as WhisperFlo pumps manufactured before 1998. This knob applies even compression to the lid, holding the gasket firmly in place to create a pressure tight seal that guards against air leaks and water loss. Crafted from tough, pool rated materials, it withstands constant exposure to

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This is my first experience with K&N engine oil filters. I purchased one through AMZN and it was cheaper than expected. I may have purchased it on sale, because it was only $10. K&N is known to have great products, so I will update this review after I've used this filter for a while. So far, it seems to be working fine.

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Reviewed in the United States on June 25, 2024

Verified Purchase

Raptor

Battle Creek, US

★★★★★ 5

Near OEM quality at 1/4 cost

Near OEM performance at 25% of the cost! Bosch Quality replaced NGKs/Toyota OEMs. Great value and now the engine is running smoothly! I have seen a slight improvement in my mpg @1mpg overall in mixed driving conditions.

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Reviewed in the United States on April 22, 2026

Verified Purchase

Joe H.

Grantham, US

★★★★★ 5

Very Expensive

Had one cylinder misfiring so replaced coil and spark plug. Runs fine now, but old plug looked shot after only 5 months so I think the coil was the problem. Really good plug so far but very expensive.

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Reviewed in the United States on February 12, 2026