www.pmmag.com/articles/89166-plastic-manifold
Plastic Manifold
September 3, 2002
The TwistSeal™ Mini-Deluxe manifold from Heatlink features patented TwistSeal technology, smaller physical size, modular design and plastic construction. Full flow -- up to eight supply and return pairs can be connected together without experiencing major pressure drops. Also includes 3/4-inch supply end connections, supply shut-offs, individual loop flow balancing and automatic control capability.
Circle 7