Stainless steel manifold (block) with 1/4" NPTF ports. Maximum pressure 6000 psi (414 bar). Four (4) 1/4" mounting holes. Port spacing: 2.75" (69.9mm) center-to-center. Dimensions: 11"L x 2"W x 1"H. Developed and distributed exclusively by Nuvair.com. Suitable upgrade from SKU GO-39.