T2138 Pneumatic Flush Button for Adagio Cisterns

    PRODUCT DESCRIPTION   

Adagio compatibility and original part reference

The T2138 is a pneumatic flush button for Adagio cisterns 37 762 SH and 37 945 SH. If you are sourcing a 38488000 replacement flush button for an Adagio repair, use GROHE 38488000 as the original part reference and T2138 as the ordering model. The T2138 has its own push-face profile, which buyers can review in the front and angled product views.

Finish options and appearance on a panel

A chrome pneumatic flush button for matching chrome bathroom fittings is one option when the button sits near polished handles or trim. Matte black is also available for projects with darker hardware. Both finishes shown use the same raised round push-face design.

Pneumatic connection and mounting checks

When selecting a pneumatic flush button for a concealed cistern, check the existing air-hose connection and the space behind the mounting panel. The threaded body is secured with the supplied mounting ring, and the kit includes a rubber sealing gasket. Compare the mounting opening, panel thickness and rear clearance with your existing installation before ordering.

For a flush button for a bathroom furniture panel, use the installed views to compare the visible bezel and finish against a light panel.

Dimensions and kit contents

Sample weight and packaging

The chrome sample shown weighs 58.3 g in its clear bag.

Standard unit packaging is a clear plastic bag. The listed carton dimensions are 50 × 35 × 40 cm (L × W × H).

Samples and custom orders

Samples are available for fit and finish checks. If you need a custom-colour pneumatic flush button for a bathroom hardware range, the housing and push-button colours can be customised with a minimum order of 3,000 units for colour customisation. Custom multilingual user manuals are also available.

To request a sample or quotation, share your cistern model, preferred finish and expected order quantity. If you need help checking fit, include photos of the existing button, mounting opening and air-hose connection, along with the opening diameter and panel thickness.

    PRODUCT ADVANTAGES    

1. Proven Performance Across Multiple Markets

Our product has been successfully sold in multiple countries and markets. Over the years, we have continuously iterated and upgraded it based on market feedback to address various challenges, such as high water temperatures, high water pressure, and poor water quality. Today, the product is highly mature and stable. Using our product to expand your business can effectively reduce customer complaints and improve customer satisfaction.

2. Comprehensive Customization Services

We offer customization options including LOGO printing, color selection, and packaging design. For example, we can print your logo on the product surface, apply your exclusive colors to the float and decorative cover, and our professional packaging designers can create market-oriented packaging that enhances your brand presence. We are committed to helping you establish a strong brand influence in your local market.

3. Certified for Global Compliance

This product has already obtained CE, CUPC, and ICC-ES certifications. If your target market requires additional certifications, we can assist you in obtaining the necessary approvals to ensure smooth market entry.

    FAQ    

Can I use the T2138 to replace a GROHE 38488000 air button?

Yes, the T2138 is an aftermarket replacement option for Adagio cisterns 37 762 SH and 37 945 SH. Check your cistern model and existing air-hose connection before ordering. The T2138 has a raised, flat-topped round push face.

What mounting hole size does the T2138 require?

Confirm the required opening against your existing panel and a T2138 sample. The 41.5 mm measurement is the outside diameter of the threaded body. For a fit check, provide the opening diameter, panel thickness and available clearance behind the panel.

Can I order a sample before placing a custom-colour order?

    WHY CHOOSE US?    

1.Market Experience

Since 2004, we have been deeply engaged in the replacement and repair market. Our products have been tested by the market and continuously improved through multiple iterations. By choosing our products to expand your business, you can effectively avoid customer complaints.

2.Quality Guarantee

We adhere to high manufacturing standards, ensuring that every product undergoes rigorous testing for durability and compatibility. With our 3 years warranty, you can trust in the long-term reliability of our products, providing peace of mind for your business.

3.R&D Ability

We have our own product designers and packaging designers who can help you quickly develop and improve products to meet the needs of your local market. This ensures that your business gains recognition and success in your target market.

4.Customer Support

We assign a dedicated salesperson to each customer, providing market consultation in the early stages, detailed confirmation during production, and follow-up support after shipment. Our goal is to support your business at every step, ensuring a smooth and successful operation.