
SWR stands for Soil, Waste and Rainwater. A uPVC SWR pipe is a lightweight, corrosion-free drainage pipe that carries soil, waste and rainwater out of a building. Duke Pipes manufactures IS 13592:2013 certified uPVC SWR pipes in Type A (light duty) and Type B (heavy duty), in 75mm, 90mm and 110mm sizes — leak-proof, flame-retardant and designed for long-term, low-maintenance drainage.
SWR full form = Soil, Waste and Rain water. uPVC SWR pipes form the drainage and sewerage system of a building — carrying wastewater from bathrooms, kitchens, toilets and rooftops to the main sewer line or a rainwater recharge pit. Made from unplasticized PVC (uPVC), they have replaced old cast-iron (CI) and asbestos pipes because they don’t rust, weigh far less and are quicker to install.
Duke Pipes has manufactured SWR drainage pipes since 1998 and is certified to IS 13592:2013, the Bureau of Indian Standards specification for uPVC soil and waste pipes. As a trusted SWR pipe manufacturer in Gujarat, Duke supplies pipes and fittings for homes, commercial buildings, hospitals and industrial facilities across India.
The main difference between Type A and Type B SWR pipes is wall thickness, strength and where they are used. Both are certified to IS 13592:2013.
| Feature | Type A (Light Duty) | Type B (Heavy Duty) |
|---|---|---|
| Wall thickness | Thinner (1.80–2.70mm) | Thicker (3.20–3.80mm) |
| Best for | Ventilation, rainwater & light internal drainage | Soil & waste discharge, heavy-duty drainage |
| Typical use | Homes, light residential lines | Hospitals, hotels, malls, airports, industry, underground |
| Strength | Standard | Maximum |
| Standard | IS 13592:2013 | IS 13592:2013 |
In short: use Type A for indoor and light drainage lines, and Type B for soil/waste, heavy-duty, commercial and underground applications. Many projects use both — Type A inside and Type B outside.
Not sure which type or size you need? Talk to a Duke pipe expert →
Duke uPVC SWR pipes are available in three popular sizes — 75mm, 90mm and 110mm — in both Type A and Type B, in standard 3-metre lengths. The 110mm (4″) size is the most common for main drainage and soil lines.
| Nominal Dia (mm) | Inch | Type | Length (mtr) | OD min (mm) | OD max (mm) | Wall min (mm) | Wall max (mm) |
|---|---|---|---|---|---|---|---|
| 75 | 2.5″ | A | 3 | 75.0 | 75.3 | 1.80 | 2.20 |
| 75 | 2.5″ | B | 3 | 75.0 | 75.3 | 3.20 | 3.80 |
| 90 | 3″ | A | 3 | 90.0 | 90.3 | 1.90 | 2.30 |
| 90 | 3″ | B | 3 | 90.0 | 90.3 | 3.20 | 3.80 |
| 110 | 4″ | A | 3 | 110.0 | 110.4 | 2.20 | 2.70 |
| 110 | 4″ | B | 3 | 110.0 | 110.4 | 3.20 | 3.80 |
Larger sizes such as 160mm (6″) are used in some drainage systems — contact Duke for availability.
A complete SWR drainage line needs the right fittings. Duke offers a full range of uPVC SWR fittings (certified to IS 14735) to match its pipes:
Fittings are available in both self-fit (ring) and solvent-weld types. Explore the full Duke range on our uPVC pipes & fittings page, or call for a complete SWR fittings list.
For underground drainage, explore the uPVC UDS Pipe. For wastewater pressure systems, see the uPVC Pressure Pipe. For plumbing supply lines, view our ASTM Plumbing Pipe.
Duke uPVC SWR pipe price depends on size (75/90/110mm), type (A or B) and order quantity. All pipes come in standard 3-metre lengths, with complete fittings — bends, tees, couplers and traps — available to build the full line.
For the latest SWR pipe price list and bulk/dealer discounts, call +91 73920 73920 or 02742-280023/24. Pan-India delivery from Gujarat — Rajasthan, Maharashtra, MP and more.
Get best SWR pipe price → Contact us
uPVC SWR pipes are generally classified under HSN 3917 (plastic tubes/pipes) — commonly 3917 23 90 for the pipe and 3917 40 00 for fittings — at 18% GST. The final HSN code and GST rate can vary by product type and billing structure — please confirm with your accountant or tax consultant before invoicing.
Interested in partnering with us? Become a Dealer or Become a Distributor with Duke Pipes.
| Nominal Diameter | Type | Effective Length (mtr) | OD(mm) | Wall Thickness | |||
|---|---|---|---|---|---|---|---|
| mm | inch | min | max | min | max | ||
| 75 | 2.5″ | A | 3 | 75.0 | 75.3 | 1.80 | 2.20 |
| 75 | 2.5″ | B | 3 | 75.0 | 75.3 | 3.20 | 3.80 |
| 90 | 3″ | A | 3 | 90.0 | 90.3 | 1.90 | 2.30 |
| 90 | 3″ | B | 3 | 90.0 | 90.3 | 3.20 | 3.80 |
| 110 | 4″ | A | 3 | 110.0 | 110.4 | 2.20 | 2.70 |
| 110 | 4″ | B | 3 | 110.0 | 110.4 | 3.20 | 3.80 |

SWR stands for Soil, Waste and Rainwater. A uPVC SWR pipe is a lightweight, corrosion-free drainage pipe that carries soil, waste and rainwater out of a building. Duke Pipes manufactures IS 13592:2013 certified uPVC SWR pipes in Type A (light duty) and Type B (heavy duty), in 75mm, 90mm and 110mm sizes — leak-proof, flame-retardant and designed for long-term, low-maintenance drainage.
SWR full form = Soil, Waste and Rain water. uPVC SWR pipes form the drainage and sewerage system of a building — carrying wastewater from bathrooms, kitchens, toilets and rooftops to the main sewer line or a rainwater recharge pit. Made from unplasticized PVC (uPVC), they have replaced old cast-iron (CI) and asbestos pipes because they don’t rust, weigh far less and are quicker to install.
Duke Pipes has manufactured SWR drainage pipes since 1998 and is certified to IS 13592:2013, the Bureau of Indian Standards specification for uPVC soil and waste pipes. As a trusted SWR pipe manufacturer in Gujarat, Duke supplies pipes and fittings for homes, commercial buildings, hospitals and industrial facilities across India.
The main difference between Type A and Type B SWR pipes is wall thickness, strength and where they are used. Both are certified to IS 13592:2013.
| Feature | Type A (Light Duty) | Type B (Heavy Duty) |
|---|---|---|
| Wall thickness | Thinner (1.80–2.70mm) | Thicker (3.20–3.80mm) |
| Best for | Ventilation, rainwater & light internal drainage | Soil & waste discharge, heavy-duty drainage |
| Typical use | Homes, light residential lines | Hospitals, hotels, malls, airports, industry, underground |
| Strength | Standard | Maximum |
| Standard | IS 13592:2013 | IS 13592:2013 |
In short: use Type A for indoor and light drainage lines, and Type B for soil/waste, heavy-duty, commercial and underground applications. Many projects use both — Type A inside and Type B outside.
Not sure which type or size you need? Talk to a Duke pipe expert →
Duke uPVC SWR pipes are available in three popular sizes — 75mm, 90mm and 110mm — in both Type A and Type B, in standard 3-metre lengths. The 110mm (4″) size is the most common for main drainage and soil lines.
| Nominal Dia (mm) | Inch | Type | Length (mtr) | OD min (mm) | OD max (mm) | Wall min (mm) | Wall max (mm) |
|---|---|---|---|---|---|---|---|
| 75 | 2.5″ | A | 3 | 75.0 | 75.3 | 1.80 | 2.20 |
| 75 | 2.5″ | B | 3 | 75.0 | 75.3 | 3.20 | 3.80 |
| 90 | 3″ | A | 3 | 90.0 | 90.3 | 1.90 | 2.30 |
| 90 | 3″ | B | 3 | 90.0 | 90.3 | 3.20 | 3.80 |
| 110 | 4″ | A | 3 | 110.0 | 110.4 | 2.20 | 2.70 |
| 110 | 4″ | B | 3 | 110.0 | 110.4 | 3.20 | 3.80 |
Larger sizes such as 160mm (6″) are used in some drainage systems — contact Duke for availability.
A complete SWR drainage line needs the right fittings. Duke offers a full range of uPVC SWR fittings (certified to IS 14735) to match its pipes:
Fittings are available in both self-fit (ring) and solvent-weld types. Explore the full Duke range on our uPVC pipes & fittings page, or call for a complete SWR fittings list.
For underground drainage, explore the uPVC UDS Pipe. For wastewater pressure systems, see the uPVC Pressure Pipe. For plumbing supply lines, view our ASTM Plumbing Pipe.
Duke uPVC SWR pipe price depends on size (75/90/110mm), type (A or B) and order quantity. All pipes come in standard 3-metre lengths, with complete fittings — bends, tees, couplers and traps — available to build the full line.
For the latest SWR pipe price list and bulk/dealer discounts, call +91 73920 73920 or 02742-280023/24. Pan-India delivery from Gujarat — Rajasthan, Maharashtra, MP and more.
Get best SWR pipe price → Contact us
uPVC SWR pipes are generally classified under HSN 3917 (plastic tubes/pipes) — commonly 3917 23 90 for the pipe and 3917 40 00 for fittings — at 18% GST. The final HSN code and GST rate can vary by product type and billing structure — please confirm with your accountant or tax consultant before invoicing.
Interested in partnering with us? Become a Dealer or Become a Distributor with Duke Pipes.
| Nominal Diameter | Type | Effective Length (mtr) | OD(mm) | Wall Thickness | |||
|---|---|---|---|---|---|---|---|
| mm | inch | min | max | min | max | ||
| 75 | 2.5″ | A | 3 | 75.0 | 75.3 | 1.80 | 2.20 |
| 75 | 2.5″ | B | 3 | 75.0 | 75.3 | 3.20 | 3.80 |
| 90 | 3″ | A | 3 | 90.0 | 90.3 | 1.90 | 2.30 |
| 90 | 3″ | B | 3 | 90.0 | 90.3 | 3.20 | 3.80 |
| 110 | 4″ | A | 3 | 110.0 | 110.4 | 2.20 | 2.70 |
| 110 | 4″ | B | 3 | 110.0 | 110.4 | 3.20 | 3.80 |
SWR stands for Soil, Waste and Rainwater. SWR pipes are used in building drainage systems to carry soil discharge, wastewater and rainwater from the building to the drainage or sewerage system.
A uPVC SWR pipe is used for bathroom drainage, kitchen waste lines, toilet discharge, floor traps, nahani traps, rainwater downpipes and rainwater harvesting systems in homes, commercial buildings and industrial projects.
Type A SWR pipe is a light-duty pipe generally used for ventilation, rainwater and light internal drainage lines. Type B SWR pipe has a thicker wall and is used for soil discharge, waste discharge, commercial drainage, industrial drainage and selected underground applications.
The price of a 4-inch 110mm SWR pipe depends on pipe type, order quantity and delivery location. The 110mm size is commonly used for main drainage and soil lines. For the latest Duke SWR pipe price, customers can request a quote or call Duke Pipes.
Yes. Duke uPVC SWR pipes are manufactured as per IS 13592:2013. Duke SWR fittings are made as per IS 14735, which is commonly used for uPVC SWR pipe fittings.
uPVC SWR pipes generally fall under plastic pipe-related HSN categories such as HSN 3917. However, the final HSN code and GST rate may depend on the exact product type, fittings and billing structure. Please confirm the final classification with your accountant or tax consultant before invoicing.
Common SWR pipe fittings include bends, single tees, double tees, couplers, reducers, P-traps, nahani traps, door bends, vent cowls and pipe clips. These fittings help create a complete drainage system for residential, commercial and industrial applications.