Akerly & Childs 4.310" Bore Piston Ring Compressor Tapered Billet Aluminum Black Anodize - Each Exhaust Port Blockoff Knit Nomex(R) material is strong

Knit Nomex(R) material is strong

Constructed of High-End Suede for Durability

160 psi Max

Note to users of Hans® devices: If replacing one of these devices that originally used spring-post anchors

All filter assemblies feature an O-ring for positive sealing in high pressure applications

Akerly & Childs 4.310" Bore Piston Ring Compressor Tapered Billet Aluminum Black Anodize - Each Exhaust Port Blockoff Knit Nomex(R) material is strongProduct Description: Piston Ring Compressor 4. 310 in Bore Tapered Billet Aluminum Black Anodized Sold Individually Akerly & Childs over 50 years experience in racing provide products for xtreme racing conditions.