Kerala Plumber Slip Decoder: What Do FTA, MTA, SDR 11 & Concealed Diverters Mean? (With 2026 Price List)
Published by ASC Technical Advisory•Updated for 2026 Kerala Construction Rates•8 Min Read
Quick Summary: Decoding Your Plumber Slip
When building a house in Kerala, your licensed plumber will hand you a sheet filled with trade abbreviations: FTA (Female Threaded Adaptor for screw-in taps), MTA (Male Threaded Adaptor for motor pumps), SDR 11 (Thick-wall CPVC hot/cold pressure pipe), and Brass Drop-Ear Elbow (Wall fitting to hold bib cocks). Taking this slip to a retail showroom will cost you roughly double. Purchasing directly from a factory wholesale depot like ASC Building Materials saves up to 50% on every single fitting.
Every homeowner building a house in Kerala experiences the same moment of confusion: your plumber hands you a folded sheet of ruled notebook paper covered in cryptic handwriting: "1\" CPVC SDR 11 12 Nos, 3/4x1/2 Brass FTA 24 Nos, 40mm High Flow Diverter 3 Sets, 110mm SWR P-Trap 6 Nos..."
If you walk into a traditional retail sanitaryware showroom with this slip, the salesperson will calculate prices based on inflated retail Maximum Retail Price (MRP). You end up paying ₹1,50,000 to ₹1,80,000 for standard items. Below is your comprehensive guide to what each trade term means, why plumbers specify them, and how you can purchase them at flat 50% factory wholesale rates.
1. The Common Plumber Shorthand Glossary
1. FTA (Female Threaded Adaptor)
A hybrid plumbing fitting made of CPVC or UPVC on the socket side, with internal female brass threads molded on the other side. Whenever you see "FTA" on a slip, your plumber needs it to mount a wall tap, shower arm, or health faucet valve.
Standard Kerala Size: 3/4" x 1/2" or 1" x 1/2" • Showroom: ₹200 | ASC Wholesale: ₹100
2. MTA (Male Threaded Adaptor)
The counterpart to the FTA. It features external male brass threads. Plumbers use MTAs to connect overhead water storage tanks, electric borewell motor suction lines, and water meter couplings.
Standard Kerala Size: 1", 1.25", 1.5" • Showroom: ₹240 | ASC Wholesale: ₹120
3. Brass Drop-Ear Elbow (90° Brass Elbow with Flange)
A 90-degree bend with brass internal threads and two screw mounting ears. Plumbers screw this fitting directly into the brickwork before plastering. It holds your wall tap firmly so it never wobbles or leaks behind tiles.
Standard Kerala Size: 3/4" x 1/2" • Showroom: ₹210 | ASC Wholesale: ₹105
4. CPVC SDR 11 Class 1 (Concealed Wall Pipes)
"SDR" stands for Standard Dimension Ratio. SDR 11 denotes a heavy-gauge wall thickness capable of withstanding 28.1 bar water pressure at 23°C and continuous hot water up to 93°C. Never substitute with SDR 13.5 inside concealed brick walls, as thin-walled pipes can rupture under solar geyser heat.
Standard Kerala Length: 3 Meters (10 Feet) • Showroom: ₹950 | ASC Wholesale: ₹475
A solid forged brass valve body installed inside your bathroom shower wall. It replaces the old-fashioned "three-tap" mixer. Moving the single lever lets you adjust temperature and divert flow smoothly between the spout and overhead rain shower.
Standard Kerala Spec: 40mm High-Flow Brass Body • Showroom: ₹7,000 | ASC Wholesale: ₹3,500
6. SWR Nahani Trap & P-Trap
SWR stands for Soil, Waste & Rainwater. A Nahani trap is a shallow floor trap installed in your shower area and kitchen wash to prevent cockroach infestation and block sewer gas from entering your living space during hot summer months.
Standard Kerala Spec: 110mm x 75mm with SS 304 Grating • Showroom: ₹480 | ASC Wholesale: ₹240
2. Wholesale Price Breakdown: Showroom MRP vs. ASC Direct
Here is what an average 3-bathroom Kerala house plumber slip costs when itemized against retail showroom prices versus ASC Building Materials' wholesale desk:
Plumber Slip Item
Qty
Retail Showroom MRP
ASC Wholesale (50% Off)
Money Saved
1" CPVC SDR 11 Class 1 Concealed Pipe (3m)
14 Nos
₹13,300
₹6,650
₹6,650
3/4" x 1/2" Brass Drop-Ear Elbows
24 Nos
₹5,040
₹2,520
₹2,520
3/4" x 1/2" Brass FTA (Female Adaptors)
28 Nos
₹5,600
₹2,800
₹2,800
40mm Forged Brass Concealed Diverter Valves
3 Sets
₹21,000
₹10,500
₹10,500
One-Piece Western Closets (Rimless Cyclone Flush)
3 Nos
₹36,000
₹18,000
₹18,000
Heavy Brass Long Body Bib Cocks & Angle Valves
18 Nos
₹16,200
₹8,100
₹8,100
Total Typical Material Bill
₹97,140
₹48,570
₹48,570 Saved
Have a Plumber Slip in Hand?
Don't spend hours typing item codes. Simply snap a clear photo of your handwritten slip and WhatsApp it to our wholesale desk in Kanhangad. We will decode it and send your 50% discounted invoice within 15 minutes.