Holdrite 117-4LL Double No-hub 1/8 Bend Restraint 4 Inch

Product Description

The HOLDRITE 117-4LL is a double no-hub fitting restraint designed for 4-inch hub-less cast iron soil pipe systems. It prevents separation at changes of direction and straight in-line joints under high thrust conditions. Licensed plumbers install this restraint in DWV systems where longitudinal movement and diagonal misalignment pose a risk to joint integrity. The engineered design requires no on-site cutting, bending, measuring, or field modification, making it a straightforward drop-in solution for no-hub joint restraint in both new construction and retrofit applications.

This restraint is suited for residential and commercial DWV installations using hub-less cast iron soil pipe. It is particularly effective in rain leader systems where water hammer and surge pressure can cause blow-outs at unrestrained fittings. Plumbers working on vertical stacks, horizontal runs, and offset fittings will find this restraint applicable wherever thrust force at a no-hub joint is a design or code concern.

Key Features

• Double restraint configuration for 4-inch no-hub cast iron pipe joints
• Engineered to resist both longitudinal separation and diagonal misalignment
• Installs without cutting, bending, measuring, or on-site modification
• Protects rain leader systems against water blow-outs at fitting connections
• Applicable at changes of direction and straight in-line no-hub joints

Compatibility

Designed as an OEM-style restraint for 4-inch hub-less cast iron soil pipe DWV fittings and joints in standard no-hub coupling assemblies.

Installation Notes

Installation is performed by a licensed plumber following applicable plumbing code requirements such as the IPC. Power or flow does not apply to this mechanical fitting, but the section of DWV system being worked on should be depressurized and drained before servicing adjacent joints. Follow the manufacturer instructions for proper seating and torque of no-hub couplings in conjunction with this restraint. Do not substitute this restraint for properly specified hangers or structural supports required by code.

Technical Specifications

• Pipe Size: 4 inches
• Configuration: Double no-hub restraint
• Fitting Type: 1/8 bend restraint
• Application: Hub-less cast iron DWV soil pipe
• UPC: 671119829488

Standard Information

• Brand: HOLDRITE
• Manufacturer Part Number: 117-4LL