SB-BR3 by Kuriyama | Two Lug Female Threaded Sand Blast Coupling | 1-1/2" Hose Size | 1-1/2" Female NPT | 110 PSI | BrassApplications: Construction. For use with Kuriyama Hoses Features: Note: Q AL5 , Q BR5 , SB AL3, and SB BR3 are large ID full flow fittings for 1 1 2" ID hose and are not interchangeable with the standard fittings. PSI Rating at 70 deg. F (+21 deg. C): 110 PSI Materials: Brass Part Number Hose Size (in.) NPS Thread Size (in.) Weight (Lbs.) SB BR1 1 1 4" 1 1 4" 1. 02 lbs SB BR2 1 1 2" 1 1 2" 0. 84 lbs SB BR3 1 1 2" 1 1 2" 3. 05 lbs