After changing this unit the hot started coming from the right side and cold from the left side, what did I do wrong?

Yes, you need to rotate both pressure unit & valve 180*.

How do you service this?

There is no servicing required it is to replace a faulty unit. The assembly is secured by a brass retainer ring with three screws.

Will this solve my problem of not getting the desired water mix (hot and cold) ? Water either comes out as hot or cold, and nothing in between.

Amazon Customer, the pressure balance unit does control the balance of hot and cold water and should take care of the problem. The model number of your faucet will determine which PBU is required. If assistance is required in determining this please contact us directly through the American Standard website "Contact Us" located at the bottom of our home page so we can assist you. Sincerely, your American Standard Consumer Connections Team.

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American Standard M952100-0070A Pressure Balancing Unit

American Standard M952100-0070A Pressure Balancing Unit

Product ID: 5701960

Details

Brand
American
Exterior Finish
No Finish
Global Trade Identification Number
Inlet Connection Type
Connector
Material
Plastic Rubber
Number of Packs
1

💧Prevents cross flow for steady water pressure

🔧Fits multiple American Standard valve models

🌡️Maintains consistent water temperature

₩54070

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Description

🚿 Elevate your shower game with flawless temperature control—because comfort is non-negotiable!

BUILT TO LAST - Durable, rust-proof plastic construction designed for low maintenance and long-term reliability.
HARD WATER WARRIOR - Engineered to resist mineral buildup and corrosion, ideal for homes with challenging water conditions.
STEADY FLOW ALWAYS - Integrated check valves and diaphragm system ensure powerful, consistent water pressure regardless of fluctuations.
EFFORTLESS COMPATIBILITY - Seamlessly replaces American Standard R110, R115, R120, and R125 valves—no guesswork, no hassle.
NO MORE SUDDEN TEMPERATURE SPIKES - Enjoy a safer, perfectly balanced shower every time with advanced pressure balancing technology.

The American Standard M952100-0070A Pressure Balancing Unit is a precision-engineered replacement valve that maintains consistent water temperature by balancing hot and cold water pressure. Compatible with multiple American Standard rough-in valves, it features an advanced diaphragm system with integrated check valves to prevent cross flow and ensure steady water pressure. Built from durable, rust-proof materials and designed to resist mineral buildup, this unit is ideal for hard water conditions and guarantees a safer, more comfortable shower experience.

Specifications

ASIN	B000I7QY3M
Best Sellers Rank	#23,890 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #14 in Faucet Valves
Brand Name	American Standard
Connector Type	Connector
Customer Reviews	4.8 4.8 out of 5 stars (1,696)
Exterior Finish	No Finish
Global Trade Identification Number	00012611249082
Included Components	Pressure Balance for Single-Control Tub/Shower Valve
Inlet Connection Type	Connector
Item Highlight	Pressure Balancing Unit: Genuine American Standard Single-Control Tub/Shower Valve Replacement Part M952100-0070A
Item Type Name	Pressure Balance for Single-Control Tub/Shower Valve
Item Weight	2.56 ounces
Manufacturer	American Standard
Manufacturer Part Number	M952100-0070A
Manufacturer Warranty Description	“*1 year Limited warranty from date of purchase”
Material Type	Plastic, Rubber
Model Number	M952100-0070A
Number of Items	1
Number of Packs	1
Number of Pieces	1
Number of Ports	2
Outlet Connection Size	0.5 inches
Outlet Connection Type	Connector
Size	1/2 inch
Specification Met	ASME, ANSI, CSA, ULC, NSF, IAPMO, WaterSense, ISO 9001, ASSE
Thread Size	1/2 inch
Thread Type	1/2" NPT
UPC	012611249082
Unit Count	1 Count
Valve Type	Pressure Balance Valve

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TrustScore 4.5 | 7,300+ reviews

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₩54070

Duties & taxes included

In stock

Sold byAmazon South KoreaDelivered 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 South Korea.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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