AquaClear Filter Hand-Tight Drain Plug
Replacement drain component for compatible Illuminex AquaClear cartridge filters.
Designed for the lower filter drain location. Confirm your AquaClear model before ordering.

AquaClear Drain Plug
Replacement drain plug for the lower drain location on compatible AquaClear cartridge filter assemblies.
Temporarily Out of Stock
Contact our team for current availability or help confirming the correct AquaClear drain plug.
Filter Drain
Replacement component for the approved AquaClear filter drain location.
Service Access
Allows the compatible filter to be drained during approved service and maintenance.
AquaClear Fit
Confirm your AquaClear model and replacement-part number before ordering.
Provides Access to the Filter Drain
The drain plug closes the designated drain opening near the lower portion of the compatible AquaClear filter.
When filter draining is required for approved maintenance, service or winterization procedures, the drain component is serviced according to the current AquaClear instructions.
This Drain Plug Is a Drain Component β Not a Pressure Device
Compatible AquaClear Filters
This drain plug is categorized as a replacement part for the AquaClear cartridge-filter family. The models below are the current AquaClear configurations β exact replacement compatibility for this specific drain plug must be confirmed before ordering.
Do not assume this drain plug fits every AquaClear model solely because they belong to the same filter family. Confirm the exact replacement-part relationship before ordering.
Where It Fits
Conceptual location of the drain plug on a compatible AquaClear cartridge filter.
Conceptual product-location visual β refer to the current AquaClear filter manual and parts diagram for exact installation details.
Drain Plug Details
Only confirmed information is shown. Thread size, thread type, plug diameter, and seal design are not published unless verified in the product record.
Hand-Serviceable Design
Designed to be installed and removed according to the approved hand-tight service procedure.
Install the drain plug according to the current AquaClear service instructions. Do not over-tighten.
Thread specifications (diameter, pitch, NPT, NPSM, BSP, or metric) are not published unless confirmed for this exact drain plug. Filter inlet/outlet connection sizes are unrelated to the drain-plug thread.
Drain the Filter Safely
Stop Circulation
Turn off the circulation pump before servicing the filter.
Relieve Pressure
Fully relieve pressure from the filtration system according to the current AquaClear instructions.
Service the Drain
Remove or install the drain plug only after the filter has been safely depressurized.
Depressurize Before Service
Turn off the pump and fully relieve filter pressure before removing or servicing the drain plug.
Never remove the drain plug while the pump is operating.
Never loosen the drain plug while the tank is pressurized.
Do not use the drain plug as the primary method of relieving pressure.
Do not open the filter before pressure is relieved.
When Should the Drain Plug Be Inspected?
Visible Damage
Inspect the plug for cracking, deformation or other visible physical damage.
Seal Condition
Inspect the approved sealing component when servicing the drain assembly.
Poor Sealing
If the drain connection does not seal correctly, inspect the plug, seal and mating surface according to the AquaClear service instructions.
Replace When Necessary
Use the correct AquaClear replacement drain component when the existing part is damaged or no longer serviceable.
What's Included
Package contents come from the actual product record. No O-ring, gasket, adapter, cap, tool, or lubricant is shown unless actually included.
O-ring or seal inclusion is not assumed β if a seal is sold separately, it appears under Related AquaClear Replacement Parts.
Confirm the Correct Drain Plug
Find Your Filter Model
Locate the AquaClear model number on the filter label.
Identify the Drain Component
Confirm that the component requiring replacement is the lower AquaClear filter drain plug.
Match the Part
Confirm the filter model and approved replacement-part number before ordering.
Contact Us About Availability
Tell us about your AquaClear filter and we'll confirm the correct drain plug and availability. Your request automatically references this product.




