QQJE-US 46DVA-HC Horizontal Direct Vent Termination Cap 4×6-5/8 Twist Lock
【Compatibility】 Precision engineered for standard 4″ inner and 6-5/8″ outer direct vent systems. Horizontal wall vent installation only (Note: Not for vertical/roof use). 【Streamlined Installation】 Includes 12 pre-drilled mounting holes and necessary hardware for a stable, secure fit.