Features:
* replacement piston, suitable for piston air compressors and air pump pistons.
*The whole machine has simple and compact structure, light weight and flexible movement.
*, anti‑corrosion, anti‑, anti‑oxidation, high temperature resistance, wear resistance.
*The function of the piston for RING is to maintain the air tightness between the piston and the cylinder wall.
*With standard inner and outer diameter size, it is convenient to install and disassemble.
*The has no casting defects such as cracks, pores, looseness, ., ensu for RING tight connection.
*The kit contains 1 piston + 3 replacement piston for RINGs(Including 2pcs balance for RING+1pcs seal for RING), which can replace the old or damaged pieces on the air pump at any time.

Specifications:
*Item Type: Air Compressor Piston + Piston for RING
*Material: Metal
*Color: Silver, Black
*Applicable cylinder diameter: 42mm 47mm 48mm 51mm 65mm, Please Choose the right size.
*Hole diameter: As picture show
*Application: Piston type air compressor, air pump piston
*Quantity: 4pcs

Package Contents:
1 x Air Compressor Piston
3 x Air Compressor Piston for RINGs