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The MILLER T4000/UAK is a full body fall protection harness rated for a 400-pound load capacity, built for construction-style applications where reliable arrest performance is required. Constructed from durable polyester webbing, this harness features a back D-ring attachment point as the primary anchorage connection. All three strap types — leg, shoulder, and chest — use mating buckle closures for secure, repeatable engagement. The universal size accommodates a wide range of body types, making it a practical option for contractors managing mixed crews or maintaining a common inventory of fall arrest equipment.
This harness is suited for residential and commercial construction sites, steel erection, roofing, scaffolding work, and other elevated tasks requiring OSHA-compliant personal fall arrest systems. The construction harness style positions the back D-ring between the shoulder blades, which is the standard attachment point for vertical lifelines, self-retracting lifelines, and shock-absorbing lanyards. It is intended for use by qualified workers operating at heights where fall hazards are present, and is typically deployed as part of a complete fall arrest system.
Designed as an OEM-style full body harness for use in standard personal fall arrest systems; compatible with vertical lifelines, self-retracting lifelines, and lanyards featuring connectors rated for back D-ring attachment.
Harness fitting and inspection should be performed by a competent person as defined under OSHA 29 CFR 1926.502. Before each use, inspect all webbing, stitching, hardware, and D-ring connections for signs of wear, damage, or chemical exposure. Do not alter, cut, or field-repair any harness component. After a fall arrest event, remove the harness from service immediately and follow the manufacturer inspection and replacement protocol.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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