Additional Fitting Sizes: 1/2″ Fittings || 1″ Fittings || 1 1/2″ Fittings || 2″ Fittings || 2 1/2″ Fittings || 3″ Fittings || 4″ Fittings 4″ Bevel Seat Hexagonal Nut SKU: 13H-4-304 4″ Bevel Seat Hexagonal Nut, 316 SKU: 13H-4-316 4″ Bolted I-Line Clamp SKU: 13I-4-304 4″ Wingnut I-Line Clamp SKU: 13IS-4-304 4″ Single Pin Heavy Duty Clamp, 316L SKU: 13MHHM-4-316 4″…