Current published lengths for the two standard 120 V shower bench mats.
The current product specifications list these heating cable lengths:
- TRT120-1.0x2.7, 11.5 × 32-inch mat: 9.4167 ft (approximately 9 ft 5 in, or 2.87 m).
- TRT120-1.3x2.7, 16 × 32-inch mat: 13.1667 ft (approximately 13 ft 2 in, or 4.01 m).
Both product pages list a separate 22 ft cold lead. Do not confuse that connection lead with the heated cable. Never shorten the heating cable; follow the shower-mat manual for layout and embedding the factory splice. For an older mat, identify its model and use its factory label when checking resistance or arranging service.
Sources: 11.5 × 32-inch mat specifications, 16 × 32-inch mat specifications, and shower-mat installation manual.