Does this product come with a warranty?

Not a specific warranty that I can recall but it is well made and can be returned to Amazon if faulty. If it is not faulty it should last for many years.

Can this replace the old AFv40100 unit without taking whole tank off? Does the valve fit into the same lower mounting?

I can't remember the part number, but I only changed the top part. It said it fits other older models

Can’t see how to twist and lock this in, the new one has a long thread at the base

hi sounds like you ordered the wrong one after 1/4 twist and pull out the old one lust fit new one in the hole push and 1/4 twist new one should be in ok hope this helps

Is this unit compatible with the afv50100 afv50200

Hi - not sure, but on Amazon if you type in afv50100 you will find the correct one, although they do look similar I can't imagine why two versions of the same valve would be produced .

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Derwent Macdee DVA0100 Kayla Cable Operated Dual Flush Valve and Button

Product ID: 48147580

Details

Brand
Wirquin
Exterior finish
Chrome
Global Trade Identification Number
Inlet connection type
Barb
Item dimensions L x W x H
11.5 x 8 x 26
Material
Plastic Rubber

💧Dual flush for water saving

🔧Easy retrofit & new install fit

⚙️Adjustable overflow 190-330mm

HK$354

Duties & taxes included

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Description

🚽 Flush Smarter, Live Better – Upgrade Your Bathroom Game!

ECO SMART DUAL FLUSH - Save water effortlessly with multi full and part flush settings designed for the conscious professional.
WRAS APPROVED QUALITY - Certified reliability and compliance for peace of mind in high-traffic environments.
CHROME FINISH ELEGANCE - Polished chrome button and spacer bezel add a sleek, modern touch to your bathroom hardware.
UNIVERSAL FIT FLEXIBILITY - Seamlessly retrofit or install new with adjustable overflow and compatibility across multiple cistern types.
QUICK HASSLE FREE INSTALLATION - Cable-operated design clips in easily, making DIY upgrades a breeze and avoiding costly plumber visits.

The Derwent Macdee Kayla Cable Operated Dual Flush Valve DVA0100 is a WRAS-approved, chrome-finished flush valve designed for both retrofit and new installations. Featuring adjustable overflow (190-330mm), dual flush settings for water efficiency, and compatibility with various cistern types, it offers a quick, tool-free installation ideal for high-traffic areas. Trusted by thousands for reliable performance and eco-conscious water savings.

Specifications

ASIN	B00LG0LWUA
Best Sellers Rank	29,142 in DIY & Tools ( See Top 100 in DIY & Tools ) 115 in Toilet Parts
Brand	Wirquin
Connector Type	Barb
Customer Reviews	4.6 4.6 out of 5 stars (565)
Exterior Finish	Chrome
Global Trade Identification Number	05017134115376
Included Components	1 x Derwent Macdee Kayla Cable Operated Dual Flush Valve DVA0100
Inlet Connection Type	Barb
Item Dimensions	11.5 x 8 x 26 centimetres
Item Type Name	Kayla Cable Operated Dual Flush Valve DVA0100
Item Weight	550 Grams
Manufacturer	Derwent Macdee
Manufacturer Warranty Description	Not applicable.
Material	Plastic, Rubber
Model Number	DVA0100
Number of Items	1
Number of Pieces	1
Number of Ports	2
Outlet Connection Size	40 Millimeters
Outlet Connection Type	Barb
Part Number	DVA0100
Size	3.15 x 4.53 x 10.24 inches
Specification Met	WRAS
Unit Count	1.0 count
Valve Type	flush valve

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HK$354

Duties & taxes included

In stock

Sold byAmazon Hong KongDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Hong Kong.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

View all Trustpilot reviews