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LNS Johnson Pump 50512PK Cartridge Housing Replacement O Ring P14002991LNS-189-50512PK https://cdnimages.opentip.com/full/LNS/LNS-189-50512PK.jpg Johnson Pump 50512PK Cartridge Housing Replacement O Ring Manufacturer Part Number: 50512PKReplacement Cartridge Housing O-ringFig.:2Fits:JP Cartridge Bilge & Aerator PumpsDescription:CartridgeHousing O-ring 14002991 0.1700lbs 4.00 0.50 7.00
Johnson Pump
6.9900 2025-07-20 9 In Stock
customer review - by , February 2, 2023
5/ 5stars
They were delivered as stated. Buying here is cheaper than at a water softener store.
customer review - by , February 2, 2023
5/ 5stars
I have a Pentair Big Blue filter housing, and on the third filter change it developed a very slow leak. No amount of tightening or regreasing would solve it, then when I measured the O-ring, I found that it had flattened slightly.I ordered this 3-pack from Captain O-Ring, coated one lightly with silicone plumbers grease, and it has sealed perfectly. Highly recommended, and a great value for three.
customer review - by , February 2, 2023
5/ 5stars
I put in a different brand of O-ring about 3 years ago. It slowly leaked and never really sealed even after cranking down on the filter housing. This ring was thinner and I was afraid it wouldn't be thick enough to seal properly. I was wrong. A week later and no leak. I did use some silicone grease/lube on each o-ring.
customer review - by , January 1, 2023
5/ 5stars
good
customer review - by , January 1, 2023
5/ 5stars
good
customer review - by , December 12, 2022
5/ 5stars
These fit perfectly with my Pentek Big Blue whole house filter housing (matches due to these being 5.5 inner diameter). used some plumber's silicone grease as well on them. Thank you.
customer review - by , November 11, 2022
5/ 5stars
These worked good.They fit good.Not much else to say
customer review - by , November 11, 2022
5/ 5stars
This o ring worked perfectly with my big blue filter.
customer review - by , November 11, 2022
5/ 5stars
I order these o-rings whenever we change our filters on our blue Pentek tanks. They are easy to install, and work fine.
customer review - by , October 10, 2022
5/ 5stars
I needed to order replacement o-rings for my big blue 20 inch water filter. This was the first time I didn't order OEM from Pentek. However upon installation these proved just as good for a better price. I have zero issues of leaks.

Johnson Pump 50512PK Cartridge Housing Replacement O-Ring, Price/EA

stars Rating 5 | 101 reviews
Brand Johnson Pump
Shop more from LNS

SKU: LNS-189-50512PK
Price: $6.99
Quantity:
9 In Stock
*  Click "Add to Cart" to calculate shipping and delivery time.
Share & Earn 10% Cash Back Best Price in Bulk

Product Description

Price is for EA.

Manufacturer Part Number: 50512PK

Replacement Cartridge Housing O-ring

Fig.:2
Fits:JP Cartridge Bilge & Aerator Pumps
Description:Cartridge
Housing O-ring

warning tips WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.

Note

This product is not eligible for coupon code discount, for we've been offering the best price in the market.
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Customer Reviews
5 stars
96
4 stars
5
3 stars
0
2 stars
0
1 stars
0
By M. Anderson
Date: February 27, 2023
They were delivered as stated. Buying here is cheaper than at a water softener store.
Rating: 5 stars [5 of 5 Stars!]
By Boris Milman
Date: February 21, 2023
I have a Pentair Big Blue filter housing, and on the third filter change it developed a very slow leak. No amount of tightening or regreasing would solve it, then when I measured the O-ring, I found that it had flattened slightly.I ordered this 3-pack from Captain O-Ring, coated one lightly with silicone plumbers grease, and it has sealed perfectly. Highly recommended, and a great value for three.
Rating: 5 stars [5 of 5 Stars!]
By Richard Keller
Date: February 17, 2023
I put in a different brand of O-ring about 3 years ago. It slowly leaked and never really sealed even after cranking down on the filter housing. This ring was thinner and I was afraid it wouldn't be thick enough to seal properly. I was wrong. A week later and no leak. I did use some silicone grease/lube on each o-ring.
Rating: 5 stars [5 of 5 Stars!]
By Richard Keller
Date: January 20, 2023
good
Rating: 5 stars [5 of 5 Stars!]
By StopherB
Date: January 20, 2023
good
Rating: 5 stars [5 of 5 Stars!]
By sandwichtyme
Date: December 07, 2022
These fit perfectly with my Pentek Big Blue whole house filter housing (matches due to these being 5.5 inner diameter). used some plumber's silicone grease as well on them. Thank you.
Rating: 5 stars [5 of 5 Stars!]
Items 1 - 6 of 101 reviews
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