LTWFITTING 1/4 in. Flare x 1/8 in. MIP Brass Adapter Fitting (5-Pack) HF484205 - The Home Depot
1/8 NPT Thread to Barb Tee Fittings | 1/8 NPT Thread to Barb Tee Fittings | Pneumadyne
1/8" NPT Tee Fitting
British Thread Brass Adaptor 1/8" NPT Female - 1/8" BSPT ( R ) Male - 120 NPT Female to BSPT (R) Male - Pipe Adapter Male to Female - British Thread Adapters - Brass Fittings
1/8 NPT to 3/8 Hose Barb Fitting, Brass - Straight | Pegasus Auto Racing Supplies
Gauge Fittings 1/8 NPT Tee 2pk | Allstar Performance