Waterway 12″ x 12″ Grate & Frame – Model 640‑4720V
The Waterway 640‑4720V is a heavy‑duty anti‑vortex suction cover assembly designed to meet current safety standards for in‑ground pools. With a 12″ x 12″ grate and frame, it allows high flow rates while minimizing entrapment risk.
Key Features:
- Square 12″ x 12″ frame & grate for broad coverage and flow capacity
- Total open area ~62.4 sq in, high flow rating (e.g., 356 GPM at ~1.83 ft/sec for floor installation) to support larger pumps and suction loads
- Designed to comply with VGB/ANSI/ASME A112.19.8 entrapment‑safety requirements when properly installed
- White finish (final digit “0” color code) but available in alternate colors via the “x” placeholder in the part number
- Includes both grate and mounting frame with stainless steel screws for installation
Technical Specifications:
- Model / SKU: 640‑4720V
- Frame size: approx. 13.250″ × 13.250″ outer dimensions
- Total open area: ~62.4 square inches
- Floor flow rate: ~356 GPM at ~1.83 ft/sec (4″ plumbing)
- Wall flow rate: ~280 GPM at ~1.44 ft/sec (4″ plumbing)
- Flow rate at 1.5 ft/sec: ~292 GPM
- Application: Main drain or suction outlet cover for in‑ground pool systems
- Certification: Listed for suction entrapment protection; meets applicable safety codes when installed properly
Cross‑Reference Compatibility:
This model corresponds to the Waterway “640‑472xV” series of 12″ x 12″ grates & frames, where the final digit after “x” denotes color. Alternate size/configuration models in the series include:
- 640‑4720V – White finish
- 640‑4721V – Black finish
- 640‑4727V – Gray finish
- 640‑4729‑BEI V – Beige/Tan finish
- 640‑4720 (same size) alternate part listings or legacy labeling
Installation & Maintenance Tip: Ensure the frame is securely mounted and level in the pool shell before re‑installing the grate. Check that required suction‑outlet flow does not exceed the grate’s rated capacity. Inspect the grate annually for cracks, chips or damage—replace immediately if compromised to maintain VGB safety compliance. When cleaning, use a soft brush and mild detergent; avoid solvents that might degrade the plastic material.
SKU: 640-4720V
