SIGHT WINDOWS THREADED Male NPT Series W16 Female NPT Series W11-FN WELD NECK Class 150 ASME Series W11-WN WELD PAD Class 150 ASME Series W11-FP 150Lb Non-ASME Series W12-FP Low Pressure Series W13-FP BOLT-ON Class 150 ASME Series W11-BO FUSED GLASS Disc with Cover Flange Bolts-On to Existing Flange Series W14-BO Disc Bolts Directly to Existing Flange Series W14-BT Sanitary Tri-Clamp Series W14-TC
