Steel Piston Ring and gaskets, PAS20RB Version 2021, fit for HQUA PAS10, PAS20 Aeration System, which Manufactured from 2021 to 2022, Sold from March, 2021 to March, 2023.

HQUA Steel Piston Ring and gaskets, PAS20RB Version 2023, fit PAS10, PAS20 Aeration System which was Manufactured from 2023, Sold from March, 2023.

HQUA-PAS20AFC Air Filter Cartridge of HQUA-PAS20 Pond Aeration Sytem, 2 pcs Included

4 Pack Air Compressor Intake Paper Filter Elements Air Replacement Filter Element for 1/2'' Air Compressor (Type 2)