The H44 class of covered hoppers were built by ACF in 1964 as PRR 260121-260410. 170 cars carried their PRR number to Conrail and were numbered into the CR 884665-884843 series. The 109 cars that had been renumbed to PC 885019-885304 became CR 885019-885304. PRR 260397 and PC 885237 were never renumber to Conrail and lasted well into the Conrail era.
Cars are rated at 100 tons, 3700 cuft & are 53ft 9in long.