We are always adding New Items in Our Hot Deals Tab!!! Edit My Account | Order History | View Shipping Costs | View Shopping Cart | Login Shopping Categories > Regulators > Regulator Accessories First Stage Regulator Adapter 3/8M - 7/16FFirst stage regulator adapter 3/8" x 24 to 7/16" x 20 Male thread end is a 3/8 Female thread end is a 7/16 Piranha's Price: $3.99