Morris 14789 Malleable EMT/Rigid Clamp Back Spacer, 3"

Product Overview

The Morris 14789 is a 3" malleable iron back spacer designed to provide clearance between conduit and the supporting structure when used with EMT or rigid conduit clamps.

Built as a heavy-duty casting, it is intended for fastening conduit and pipe to beams, strut, and other supports and may be used with one-hole straps and malleable iron or aluminum clamps.

Key Features

• Trade size: 3"
• Material: malleable iron heavy-duty casting
• Provides space between conduit and support when used with clamps
• Compatible for use with malleable iron or aluminum clamps and one-hole straps
• Designed for fastening conduit/pipe to beams, strut and other supports

What this part does

The Morris 14789 back spacer provides a 3" separation between conduit and the mounting surface when installed behind a conduit clamp. That clearance helps position conduit away from beams, strut, or other supports to accommodate fittings, prevent abrasion, or meet routing needs.

• Intended to be used with EMT or rigid conduit clamps
• Used wherever a dedicated spacer is required behind a clamp

Material and construction

This part is a heavy-duty malleable iron casting. The material and cast construction are intended to resist wear over a long service life when used in standard conduit support applications.

• Material: malleable iron
• Heavy-duty casting for mechanical durability

Where to use it

The 14789 is used to fasten conduit and pipe to structural supports such as beams and strut. It is compatible with malleable iron or aluminum clamps and can be used alongside one-hole straps where a back spacer is required.

• Common mounting surfaces: beams, strut, structural supports
• Compatible clamp types: malleable iron or aluminum clamps, one-hole straps

Basic installation notes

Seat the conduit in the clamp and install the back spacer between the clamp and the support. Tighten the clamp bolt against the support so the spacer holds the conduit at the specified clearance.

• Seat conduit in the clamp before tightening
• Tighten clamp bolt so the spacer bears against the support

Before You Order

Confirm the model number and the quantity required before ordering to ensure compatibility with the clamp style and conduit run.

• Verify this 3" spacer meets the clearance needed for your installation
• Confirm compatibility with the specific clamp or one-hole strap you plan to use

Ordering from Lumera Electric

Check the purchasing options shown on the Lumera Electric product page for Morris 14789 Malleable EMT/Rigid Clamp Back Spacer, 3". For project quantities or additional ordering requirements, use Request a Quote and provide the required quantity.