Viega ManaBloc manifold with (30) PEX ports - (12) Hot and (18) Cold. Intended for use with ViegaPEX Ultra (Potable/Non-barrier) and Viega FostaPEX tubing and connection methods. Also compatible with all other types (A, B, C) and brands of PEX tubing. Each port (branch) is equipped with a built-in 1/4 turn shut-off valve for individual fixture control. NOTE: Supply adapters (which connect the main hot & cold pipe lines to the ManaBloc) and port adapters are not included and must be purchased separately. Accessories (supply end caps, port caps, brackets, etc.) are sold separately. Technical Specifications: Total Ports (Branches): 30 (12 Hot & 18 Cold) Hot/Cold Water Inlet Connections: 1" (manabloc adapters required) Branch spacing: 1-11/16" OC (On Center) Dimensions (L x H x W): 29-1/2" x 3" x 8" Max Pressure Rating: 100 psi @ 180°F Port (Branch) Pressure Drop: 3.4 psi @ 4.0 GPM Port K-Factor: 0.21 (for 1/2" PEX) Lead-free, approved for potable water use Meets NSF/ANSI 61 & 372, ASTM F876/F877, CSA B137.8 UPC-IAPMO Certified Made in the USA.