B38;K Llc 888-221RP Drain Caps 3 Pack Multi-thread

Product Description

The B38;K LLC 888-221RP is a 3-pack of replacement drain caps designed to seal the drain ports on drainable valves and stop valves. Each pack includes caps in three common thread sizes: 5/16 inch-24, 3/8 inch-24, and 3/8 inch-27, covering the most widely encountered configurations in residential and light commercial plumbing systems. These caps restore a proper seal on valve drain points, preventing unintended leakage or contamination ingress at the drain port. Plumbers and service technicians keep these on hand as a fast, low-cost fix when original caps are lost or damaged during service calls.

This 3-pack is suited for maintenance and repair work on drainable ball valves, stop valves, and similar shutoff assemblies found throughout residential water supply systems, including under-sink supply lines, toilet supply connections, and main line shutoffs. The multi-thread assortment reduces the need to stock individual sizes separately, making it practical for field service kits and shop inventory alike.

Key Features

• 3-pack includes three thread sizes: 5/16 inch-24, 3/8 inch-24, and 3/8 inch-27
• Fits most standard drainable valves and stop valves with drain ports
• Multi-thread assortment covers common residential plumbing configurations
• Compact size suits inclusion in field service kits or truck stock
• Direct OEM-style replacement for lost or damaged drain caps

Compatibility

Designed to fit most drainable valves and stop valves with drain ports using 5/16 inch-24, 3/8 inch-24, or 3/8 inch-27 thread sizes, as stated by the manufacturer. Consult the valve body or documentation to confirm thread size before installation.

Installation Notes

Installation is performed by licensed plumbers or qualified service technicians. Shut off the water supply and relieve system pressure before removing or installing drain caps. Hand-tighten caps to seat properly and avoid cross-threading; use an appropriate wrench only to achieve a snug, leak-free fit. Work should comply with applicable local plumbing codes and IPC guidelines.