Middle Atlantic ADAPTER-2IN TO 1 1/4IN IP - 1126A-11/4

Middle Atlantic 1126A-11/4 2-Inch to 1-1/4-Inch IPS Adapter

Overview

The Middle Atlantic 1126A-11/4 is a 525 Series adapter that bridges a 2-inch IPS opening to a 1-1/4-inch (31.8 mm) fitting — solving the common mismatch between rough-in conduit openings and smaller-diameter service fittings in in-floor raceway systems. If your preset or afterset insert calls for a 1-1/4-inch IPS connection but the floor box opening was cut or cast for a 2-inch IPS, this is the correct piece to close that gap without rework. TAA compliant, making it eligible for federally funded installations subject to Trade Agreements Act procurement requirements.

Compatibility

Designed for use with Middle Atlantic's 525 Series in-floor service fittings, including both preset inserts (factory-set during floor pour) and afterset inserts (field-installed post-pour). Specifically fits installations where a 2-inch IPS preset or afterset base must accept a 1-1/4-inch IPS service fitting. Verify your existing floor box or in-floor raceway is 525 Series before ordering — this adapter is not a universal fit across all Middle Atlantic floor system families.

Installation Notes

The 31.8 mm (1.25-inch) diameter governs the adapter's fit within the receiving opening — confirm your insert's IPS bore before ordering. No special tooling is specified in the manufacturer documentation beyond what standard IPS fitting installation requires.