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Your cart is empty.This piston ring, crafted from durable steel, is designed for the PAS20 system. With an outer diameter of 2 1/2 inches, a thickness of 5/64 inch, and a height of 1 inch, it offers a sturdy and reliable solution. The set includes two pieces, ensuring you have a spare on hand for seamless maintenance or replacement. Whether for industrial or mechanical applications, this piston ring is built to withstand demanding conditions and deliver consistent performance.
SCman
Reviewed in the United States on August 29, 2024
I order following the information book that came with my aeration system. The O ring gasket and the piston cap were the only things that fit. The piston cylinder was about 1/4inch too tall and there was only one set of head gaskets in the pack and they did not fit my system. The pump is running and sounding better with what I could use.
Cadillackid
Reviewed in the United States on August 16, 2024
It was an easy fix. Extra parts where included for different models than mine. Be sure not to try to make those parts fit. I would buy it again for my second back up pump. Could not find a less expensive option on Amazon.
David D
Reviewed in the United States on June 27, 2024
Sleeves ok but gaskets to thick
James L.
Reviewed in the United States on June 18, 2024
I ended up replacing just the piston ring gaskets and sleeves as the other oring gaskets seemed to be in good shape and sealing well. the top portion of the piston head actually didn't seem to want to come apart so I didn't force it. I did cam out and strip the heads of the piston bolts - note you'll probably need to heat piston bolt head/valve plate with a propane torch to loosen up the thread locker used. I ended up needing to use easy outs with impact driver to remove the bolts. Seller was very helpful though and sent me bag of replacement piston bolts in 2 days. Gaskets are very difficult to install and need to be formed to fit in the sleeve. My technique was to press in the gasket using my fingernails to set it around the valve plate prior to setting it in and bolting it in place with the piston bolt. I then formed up the edges of the piston ring gasket with my fingers to add necessary curl to the gasket. Once I got the curl in the gasket I unbolted it and removed the valve plate and was then able to fit the valve plate with gasket into the piston sleeve - get in carefully set in position and bolted on. It was a chore taking longer than I'd like to admit, but did seem to work.
REL
Reviewed in the United States on May 2, 2024
This product does NOT fit the compressor that came with the PS-20 pond aeration system. The piston caps do not fit the pistons, and the cylinders are taller than the original cylinders, making it impossible to reassemble the compressor. Of course one doesn’t know this until one has completely torn down the compressor.HQUA Tech support offered to replace the kit with an older style which might fit my compressor, but I can't wait for weeks while this kit ships from China.I returned the kit for a refund, threw away the worn out compressor and bought a replacement from a different company for a whole lot less money than what I paid for the HQUA.
Vince
Reviewed in the United States on January 9, 2024
Piston rings initially were a challenge to install.I ended up using the bolts on the piston cap to pull the rings into place.
Cornelius Neufeld
Reviewed in Canada on May 27, 2023
The sleeves fit but the rings going in the sleeves are way too big
Jill
Reviewed in the United States on April 13, 2023
The circular gaskets in the rebuild kit weren't the correct size. Didn't have time or the patience to return the kit so I reused the original gaskets. Defeats the purpose of doing a rebuild but I had no other options
Michael H
Reviewed in the United States on October 16, 2021
Replacement sleeves were too short for my pump. Contacted seller. They said my pump was an older model. They sent the sleeves that fit within 5 days. Very satisfied with the service.
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