On the 4x6 increaser, there is an inside ring to stop the 4 in pipe being inserted too far. What is the inside diam of that ring?

Hi, DWV fittings meeting the requirements of ASTM D2665 have tapered fitting hubs and include a center stop in the fitting. The bottom of the 4” fitting hub will have an approximate inside diameter of 4.495.

what is the inside diameter of the 3 inch side of the 4inch/3 inch reducer?

DWV fittings meeting the requirements of ASTM D2665 have tapered fitting hubs and include a center stop in the fitting. The bottom of the 3” fitting hub will have an approximate inside diameter of 3.495”.

Is the 4" X 6" fitting to connect 4" and 6" sch40 piping? Just making sure those are the dimensions implied. Thanks!

I purchased the 2 X 1 1/2 inch fitting and used to connect a 2 inch PVC pipe to a 1 1/2 inch PVC pipe.

Can this be used above ground when outside temps get below zero? If not, what can I use?

This part, an increaser/reducer, is intended for non-pressure applications for both above and below ground use. Please make sure this part is not being used to convey pressurized fluids, as this fitting is not rated for that, and fluids at or below 32°F do freeze, likely causing a failure to occur. If this part is installed in a drain, waste, and vent application, gravity and proper installation (1/4” per foot slope in the entire system) should move all standing water and therefore mitigating any freeze potential. Thanks, Charlotte Pipe

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🔧 Upgrade your plumbing game with Charlotte Pipe’s reliable reducer!

VERSATILE FIT - 1-1/2" to 2" plain end reducer perfect for seamless transitions in your plumbing setup.
PROUDLY AMERICAN - Manufactured in the USA by Charlotte Pipe, a century-old trusted brand.
SAFE COMPLIANT - Meets NSF Standard 14 and ASTM certifications for non-toxic, industry-leading quality.
TRUSTED DURABILITY - Schedule 40 rating ensures long-lasting performance in drain, waste, and vent systems.
EFFORTLESS INSTALLATION - Lightweight PVC design means no special tools needed—get your project done faster.

Charlotte Pipe’s 1-1/2" x 2" Schedule 40 PVC DWV increaser reducer fitting offers a durable, lightweight, and easy-to-install solution for non-pressure drain, waste, and vent systems. Made in the USA and certified to NSF and ASTM standards, it ensures safe, long-lasting performance for both home and industrial plumbing projects.

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Size	1-1/2 Inch x 2 Inch (Qty: 1)
Material	Polyvinyl Chloride
Brand	Charlotte Pipe
Colour	White
Item dimensions L x W x H	7 x 7 x 5.5 Centimeters
Connector Type	Reducer
Thread Size	2 inches
Exterior Finish	White
Item Weight	1.6 Ounces
Number of Pieces	1
Global Trade Identification Number	00611942032037
Manufacturer	Charlotte Pipe
UPC	611942032037
Department	Unisex-Adult
Country of Origin	USA
Item model number	PVC 00102 0600HA
Product Dimensions	6.99 x 6.99 x 5.49 cm; 45.36 g
ASIN	B000H5VQ8I

Charlotte Pipe 1-1/2" X 2" Plain End Pipe Fitting - Increaser Reducer Schedule 40 PVC DWV (Drain, Waste and Vent) Durable and Easy to Install for Home or Industrial Use Fitting (Single Unit)

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