4" NPT Female Coupler Type D Stainless Steel - D4-SS-NPT .B. 1/2" sizes are only supplied with one locking arm. Connection/Thread Type: 4" MPN: D4-SS-NPT Product Code: D4-SS-NPT This is an online offer only for a Limited Time! Availability: In stock Only £93.30 incl VAT. Delivery available to UK/Europe |