www.phcppros.com/articles/5879-navien-modular-manifold-kits

Navien Modular Manifold Kits
August 23, 2017
Available in configurations of two, three and four units side-by-side, and two and four units back-to-back, the Ready-Link Manifold Kits are designed to save contractors time on multi-unit NPE Tankless Water Heater installations. Complete packages for assembly on new installations or same day emergency replacements can be picked up at Navien wholesale locations and mounted either on a wall or on the Ready-Link Rack System to support up to 16 cascaded units in 30 different arrangements.