Print Back

System uses modular elements. The spacer elements are modular and interlock at the sides and top to secure the ducts against separation during backfiling. Two modules are offered: a base spacer-flat at the bottom and an intermediate spacer. When the duct bank is capped with a spacer or a Cap-Lok (see accessories), the need for spacers as top caps is not necessary. The Cap-Lok is an easy and cost effective method for securing the top of the duct bank.

Assembly is a snap. Base and intermediate spacers interlock both vertically and horizontally; the interlocks plus wide base-plates provide solid support for duct bank.

Push together. As shown above, the suggested method is to snap spacers together with a vertical push..

Slide together. As shown at right, above, units will also slide together; this method is for use in unusual field conditions such as duct repair.

base
Unit of Measure
1 

Part #

Item Name

Type

Pipe Diameter

Pipe Separation

Standard Pack

121-1 N/A 4 x 1 Base Spacer N/A Single Base Spacer N/A 4 in N/A 1 in N/A 175
125-1 N/A 4 x 2 Base Spacer N/A Single Base Spacer N/A 4 in N/A 2 in N/A 140
129-1 N/A 5 x 1 1/2 Base Spacer N/A Single Base Spacer N/A 5 in N/A 1 1/2 in N/A 120
131-1 N/A 5 x 2 Base Spacer N/A Single Base Spacer N/A 5 in N/A 2 in N/A 120
133-1 N/A 6 x 1 1/2 Base Spacer N/A Single Base Spacer N/A 6 in N/A 1 1/2 in N/A 100
135-1 N/A 6 x 2 Base Spacer N/A Single Base Spacer N/A 6 in N/A 2 in N/A 100
151-1 N/A 2 x 1 1/2 Base Spacer N/A Single Base Spacer N/A 2 in N/A 1 1/2 in N/A 250
153-1 N/A 2 x 2 Base Spacer N/A Single Base Spacer N/A 2 in N/A 2 in N/A 225
155-1 N/A 2 x 3 Base Spacer N/A Single Base Spacer N/A 2 in N/A 3 in N/A 225
157-1 N/A 3 x 1 1/2 Base Spacer N/A Single Base Spacer N/A 3 in N/A 1 1/2 in N/A 175
159-1 N/A 3 x 2 Base Spacer N/A Single Base Spacer N/A 3 in N/A 2 in N/A 155
161-1 N/A 3 x 3 Base Spacer N/A Single Base Spacer N/A 3 in N/A 3 in N/A 150
163-1 N/A 6 x 3 Base Spacer N/A Single Base Spacer N/A 6 in N/A 3 in N/A 95
186-1 N/A 4 x 1 1/2 Base Spacer N/A Single Base Spacer N/A 4 in N/A 1 1/2 in N/A 140
190-1 N/A 4 x 3 Base Spacer N/A Single Base Spacer N/A 4 in N/A 3 in N/A 120
192-1 N/A 5 x 3 Base Spacer N/A Single Base Spacer N/A 5 in N/A 3 in N/A 100
197-1 N/A 8 x 1 1/2 Base Spacer N/A Single Base Spacer N/A 8 in N/A 1 1/2 in N/A 50
199-1 N/A 8 x 2 Base Spacer N/A Single Base Spacer N/A 8 in N/A 2 in N/A 50
201-1 N/A 8 x 3 Base Spacer N/A Single Base Spacer N/A 8 in N/A 3 in N/A 50
Unit of Measure
1