AirTAC Combination Filter Regulator Lubricator Units (FRL)
** To ensure the proper fit when choosing thread type for a combination filter-regulator-lubricator, please reference the following standards:
NPT - American standard taper pipe threads for general use
M - Metric screw threads M profile
Rp or G (BSPP) - British standard pipe (parallel) threads
PT - JIS taper pipe threads
Download the Thread Identification Guide
