Can this be used on a standard yard waterhose? Can the pressure be adjusted to a low and/or off level?

Yes, standard water hose. No, pressure cannot be adjusted. You can add a shutoff valve before the pressure valve if you want to adjust the volume flow.

What size are the fittings? 1/2" or 5/8" ?

Neither, they are the same size that will fit any outside faucet or garden hose. According the American National Standards Institute, garden hose thread--GHT--has an outside diameter of 1.0625 inches with 11.5 threads per inch.

after 5 years this has started to leak between inlet and outlet. is it repairable or just throw away

No, you don't need to throw it away unless it is badly corroded and the thread part is cracked or you are so rich and want to throw money away. Any female-gender garden hose-type connector has a o-ring gasket in it, and you need to replace it once every few years or when it leaks. Most hardware stores carry the replacement gaskets and they are pretty cheap, several pieces a dollar and it is very easy to replace it.

I live in an apartment and the pressure is often low when they're watering the lawns. What is minimum input pressure for 40 lb regulated output?

Regulating your water won't help. You'd have to take that up with management about the sprinklers. The issue may be that they're using 1" or larger pvc pipe for the sprinklers which means there's a pressure drop because there's not enough water flow to support it. they could contact the water company to adjust the pressure regulator for the main water line which should support the demand for the sprinklers.

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Camco (40055 RV Brass Inline Water Pressure Regulator- Helps Protect RV Plumbing and Hoses from High-Pressure City Water

Product ID: 64023218

Details

Brand
Camco
Exterior finish
Brass
Inlet connection size
0.75 Inches
Inlet connection type
Threaded
Item dimensions L x W x H
25 x 25 x 25
Material
Brass

💧Consistent 40-50 PSI water pressure regulation

🔧3/4-inch garden hose thread compatibility

🛡️Durable lead-free brass construction

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Description

🛠️ Protect your adventure with precision pressure control!

BUILT TO LAST - Crafted from premium lead-free brass, ensuring safe drinking water and long-lasting durability in all outdoor conditions.
COMPACT LIGHTWEIGHT - At just 1.8 ounces and 25mm³, it’s the perfect space-saving upgrade for your RV without adding bulk.
TRUSTED OUTDOOR ESSENTIAL - From camping to boating, Camco’s regulator is a must-have for professionals who demand reliability and peace of mind on the road.
PRECISION PRESSURE CONTROL - Safeguards your RV plumbing by maintaining a steady 40-50 PSI, preventing costly damage from city water surges.
UNIVERSAL FIT EASY INSTALLATION - Seamlessly connects with standard 3/4-inch garden hose threads for hassle-free setup wherever your adventure takes you.

The Camco 40055 RV Brass Inline Water Pressure Regulator is a compact, lead-free brass device designed to protect RV and boat plumbing from high-pressure city water by regulating pressure to a safe 40-50 PSI. Compatible with standard 3/4-inch garden hose threads, it offers durable, reliable performance trusted by outdoor enthusiasts since 1966.

Specifications

ASIN	B003BZD08U
Best Sellers Rank	85,122 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 93 in Pressure Regulators
Brand	Camco
Connector Type	Threaded
Customer Reviews	4.7 4.7 out of 5 stars (23,025)
Exterior Finish	Brass
Global Trade Identification Number	00014717400558
Included Components	Water Pressure Regulator
Inlet Connection Size	0.75 Inches
Inlet Connection Type	Threaded
Item Dimensions	25 x 25 x 25 millimetres
Item Type Name	Camco RV Brass Inline Water Pressure Regulator- Helps Protect RV Plumbing and Hoses from High-Pressure City Water, Lead Free (40055)
Item Weight	1.8 Ounces
Manufacturer	Camco
Material	Brass
Maximum Operating Pressure	50 Pound per Square Inch
Model Number	40055
Number of Items	1
Number of Packs	1
Number of Pieces	1
Number of Ports	1
Outlet Connection Size	0.75 Inches
Outlet Connection Type	NH
Part Number	40055
Size	No Size
Specification Met	CE, ISO 9001, RoHS
Thread Size	3/4 inches
Thread Type	3/4" Garden Hose Thread
UPC	014717400558
Unit Count	1.0 count
Valve Type	Globe Valve

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₩63571

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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