Thrifco Plumbing 5110052 Sturdy Dumbbell Wrench, Bath Tub Drain Remover Replaces Superior Tool 06020 / General Tool 185 / Pasco 4554. This Double Ended Tub Drain Wrench removes most old tub and shower drains and helps during replacement installations. A heavy-duty aluminum die-cast construction ensures long-lasting durability. Its double-ended design fits most tub drains with the small end for use on bar strainers and some lavatory drains. An adjustable wrench or screwdriver is required for proper operation. .