RK MAC Replacement Kit, Top SS Piston & GEN III Piston Seal Assy, Neoprene for CPS TR21/TRS21
Reference: RKMAC-3N
Manufacturer: RK MAC
***Note: Neoprene is for HVAC Applications, not Extraction*** Once you have your CPS TR21 or CPS TRS21 updated with either upgrade kits RKMAC-1N or RKMAC-2N, purchase this kit to service the piston seals.
Overview
***Note: Neoprene is for HVAC Applications, not Extraction***
Once you have your CPS TR21 or CPS TRS21 updated with either upgrade kits RKMAC-1N or RKMAC-2N, purchase this kit to service the piston seals. This kit contains the Top SS Piston with GEN III Piston Seals and Wear Bands. GEN III seals last 700% longer than the OEM seals. This kit utilizes a Neoprene energizing O-ring for refrigerant recovery use.
Includes Piston Tool RKMAC-TL1
- Installation Manual
Fits
CPS TR21 and TRS21 recovery pumps.
Neoprene is for HVAC (refrigerant) use, not extraction. For butane or propane extraction choose the Viton version.
Delivery and pickup
- Ships across Canada and to the USA by Purolator, UPS or FedEx - live rates at checkout.
- Free pickup in Langley, BC.
- We deliver orders of $1000 or more in the Lower Mainland and Fraser Valley ourselves.
| Maker | RK MAC Service |
| Part number | RKMAC-3N |
| Fits | CPS TR21 and TRS21 |
| Seals / O-rings | Neoprene (HVAC, not extraction) |
| Included | Top SS piston, GEN III piston seals, wear bands, Piston Tool RKMAC-TL1 |





















