Skip to Main Content

103MBP

Class 300 Aluminum Bronze Standard Wafer Silent Check Valves

  • Sizes: 1 in. to 10 in. (25 to 250 mm)
  • Compact, lightweight wafer design saves space
  • Disc begins to open at 0.5 psi (34.5 kPa), and opens 1/3 inch per inch of line size for enhanced flow
  • Disc is fully guided at top and bottom to ensure alignment and sealing at any installation angle

Select a Model

Select options below to identify the UPC, Order Code, and Repair Kit for a specific 103MBP

Approval/Certification Information

For product-specific approval information, please refer to the product’s specification sheet or ask a Watts representative. For general information regarding any approval certification partners identified in the specification sheet, please visit our certification partners’ websites:


ASSE CSA FM Approvals NSF
UL ULC USC WQA