National Spencer Part Number: 960

the most popular sizes are listed below

Straight Pipe

1/2-27 (m) x 1/4 NPT (m)

Dust Cap 1” NPT(F)

Milton 452 1-1/4" Plastic Valve Extension Ambient Air Dryer National Spencer Part Number: 9601 1 4" Plastic Valve Extension Extends through hole in wheel cover for ease in inflating or checking tire pressure Lightweight so it will not affect wheel balance 1 1 4" effective length Milton 1 1 4" Plastic Valve Extension (Box of 50)1 1 4" plastic extensions extend through hole in the wheel cover for ease in inflating or checking tire pressure. Lightweight so it will not affect wheel balance.