1" TESTanDRAIN Model 1000, 5/8", ELO 11.2 K-Factor

1 1/4" TESTanDRAIN Model 1000, 3/4", ESFR 14 K-Factor

1" TESTanDRAIN Model 1011A, 3/8", 2.8 K-Factor with Pressure Relief

1" TESTanDRAIN Model 1011A, 7/16", 4.2 K-Factor with Pressure Relief

1 1/4" TESTanDRAIN Model 1011A, 5/8", ELO 11.2 K-Factor with Pressure Relief

1 1/4" TESTanDRAIN Model 1011A, 3/4", ESFR 14 K-Factor with Pressure Relief