Grohe 21375001 Costa L Single-Hole Basin Mixer Spare Parts

SUMMARY

Spares for Grohe 21375001 Costa L Single-Hole Basin Mixer

The Grohe 21375001 Costa L is a chrome, basin-mounted, single-hole basin mixer with two metal handles, a swivel tubular spout and a pop-up waste set. This page brings together the verified Grohe tap spare parts used to service the mixer, including the flow headwork, O-rings, mousseur, mounting bracket and waste operating rods.

The mixer uses separate headworks to control the hot and cold water supplies. A worn 07146000 headwork or damaged associated seals can cause water to drip from the spout when the tap is turned off, while limescale or debris in the 13928000 mousseur can reduce or distort the outlet flow. The horizontal waste rod transfers movement from the lift mechanism to the pop-up waste and may require adjustment if the plug does not open or close fully.

Technical Details

- - Brand: Grohe

- - Range: Costa L

- - Category: Basin mixer

- - Article number: 21375001

- - Manufacturer designation: Single-hole basin mixer 1/2 inch

- - Installation: Basin-mounted single-hole fitting

- - Controls: Two heat-insulated metal handles

- - Headwork type: GROHE Long-Life headparts

- - Spout: Swivel tubular spout

- - Finish: Chrome

- - Overall height: 220 mm

- - Spout outlet height: 144 mm

- - Spout projection: 137 mm

- - Body base diameter: 50 mm

- - Maximum mounting surface thickness: 30 mm

- - Flexible inlet connections: G3/8

- - Included waste: Pop-up waste set 1 1/4 inch

- - Waste thread: G1 1/4

- - EAN: 4005176843037

Common Service Symptoms

- - Water dripping from the spout when the mixer is turned off may indicate a worn 07146000 headwork or damaged headwork seals

- - Reduced, irregular or distorted water flow may indicate limescale or debris inside the 13928000 M22 x 1 mousseur

- - Movement at the mixer body may indicate a loose, worn or incomplete 46249000 mounting bracket assembly

- - A pop-up waste that does not open or close fully may require inspection and adjustment of the horizontal rod and waste linkage

Before You Order

- - Confirm that the mixer article number is exactly 21375001 and compare the removed component with the existing installation

- - GROHE records a June 2007 to July 2018 spare parts schedule and a July 2018 onwards schedule under the same article number, so check the installation period before ordering

- - Select the 07341000 rod only when the optional 350 mm waste operating rod is required, as rod selection should not be based on length alone

- - Isolate the hot and cold water supplies before removing a headwork, hose, spout or mounting component