will this valve fit a 3/4" ID vinyl hose?

Yes. But it did not work and I lost about 75 gallons out of my saltwater tank when the power went out. Only took about 3 min. For half of my tank to empty.. I would find a nicer piece if i were looking.

How does this fit both 1" & 3/4" pipe? From the pictures I don't see any way to support multiple diameters.

The smooth is 3/4 the ridged is 1 inch.

Will this work to keep water from draining back into my washing machine?

I will say it does. I use it to keep water from draining in my dishwasher machine

Can this be used with a dishwasher drain hose, to prevent backflow from the garbage disposal?

Provide an easy way to maintain prime in a suction or discharge line. Suitable for use with manual or electric pumps

Whale Lv1219 Non Return Inline Valve For Use With ¾

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

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₩65900

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.

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Description

🔧 Keep your flow flawless—because downtime is not an option!

ALWAYS PUMP READY - Innovative non-return design prevents drain back, keeping your line primed and ready at all times.
SLEEK INLINE DESIGN - Compact and streamlined to fit effortlessly within your plumbing system without disrupting flow.
UNIVERSAL PUMP COMPATIBILITY - Works flawlessly with manual and electric pumps, empowering your setup with flexibility.
PRECISION FIT FOR VERSATILITY - Seamlessly integrates with both ¾-inch and 1-inch diameter pipes for ultimate adaptability.
UNYIELDING NITRILE DURABILITY - Crafted from premium nitrile material ensuring long-lasting, leak-proof performance under pressure.

The Whale LV1219 Non-Return Inline Valve is a robust, nitrile-constructed valve designed for ¾-inch and 1-inch pipes. It prevents backflow to maintain prime in suction or discharge lines, compatible with both manual and electric pumps, ensuring reliable, leak-free operation in any plumbing setup.

Specifications

ASIN	B00144AQG4
Best Sellers Rank	#33,757 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1,019 in Pipe Fittings
Brand	Whale
Brand Name	Whale
Connector Type	Threaded
Customer Reviews	4.4 out of 5 stars 356 Reviews
Exterior Finish	Nitrile Rubber
Global Trade Identification Number	00766478121905
Included Components	End Product & Information
Inlet Connection Size	0.75 Inches
Inlet Connection Type	Flange
Item Dimensions	6.69 x 3.94 x 1.57 inches
Item Type Name	boating-waste-treatment-products
Item Weight	0.03 Kilograms
Item dimensions L x W x H	6.69 x 3.94 x 1.57 inches
Manufacturer	Whale
Manufacturer Part Number	LV1219
Material	Other
Material Type	Other
Model Number	LV1219
Number of Ports	2
Outlet Connection Size	0.75 Inches
Outlet Connection Type	NPT
Size	One Size
Smart Home Compatibility	Not Smart Home Compatible
Specification Met	CE
Thread Size	¾ inch & 1 inch
UPC	766478121905
Unit Count	1.0 Count
Valve Type	Check Valve

Reviews

C**G

17.03.2026

S**I

13.02.2026

P**Y

16.04.2025

J**4

26.02.2025

S**E

17.04.2025

M**S

8.08.2024

C**Y

18.06.2024

M**Y

3.10.2024

H**G

22.08.2024

C**D

12.07.2023

S**O

5.03.2022

S**D

22.06.2018

R**N

13.08.2021

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Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

₩65900

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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Smooth transaction and product arrived in perfect condition.

3 weeks ago

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1 day ago

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Whale LV1219 Non-Return Inline Valve, for Use with ¾-Inch and 1-Inch Diameter Pipes, Nitrile Construction, Black

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Details

Description

Specifications

Reviews

Common Questions