CPS Products BTLFV14 Fast-Vac Y Adapter 3/8″x3/8″x1/4″FM Supercharge your HVACR evacuations with the Fast-Vac Vacuum Pump Y adapter: 3/8M x 3/8M x 1/4FM Highlighted Features: Rugged Stainless Steel construction ensures long-lasting performance Compatible with 1/4 male connection ports Tethered protective port caps Vacuum rated to 15 microns