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non-biodegradable
The model offers an 8″ × 8″ square fixed top with a heel-proof ductile iron grate and a no-hub outlet (standard)
Z551-3IP-TS
Standard no-hub outlet connection
Watts - GRD-630 - Green Roof Intensive Area Drain Sheet Drain non-biodegradableThe Watts GRD 630 is a green roof planter drain designed to provide reliable primary drainage in large planter and vegetated roof systems. Its epoxy coated cast iron body offers long term corrosion resistance, while the perforated stainless steel ballast guard protects the drain from soil, debris, and excess loading. A removable cover provides surface level access for maintenance, and the unit is available with a standard no hub outlet for