Kit Auto Drain Speedaire Standard and HD

Filter Drain Kit Compatible with Grainger Part Number 4ZK78 4ZK79 4ZL09 4ZL10 4ZL11 4ZL18 4ZL19 Series Heavy Duty Body Material Polycarbonate Compatible with Brand Speedaire Drain Port Connection Style Threaded Drain Port Gender Male Drain Port Size 1/8 in Drain Port Type BSPT Drain Type Auto Drain