I guess i should have been more specific. the clamp on the valve body. i am aware of the hose clamps. some photos show it with a clamp, others do not.

make sure you use all clamps or it will separate

Does this restrict the raw water flow in any way?

It doesn’t seem to restrict water flow. But I’ve got to warn you, I’ve had two of these crack and fail (see my review and picture).

Is it necessary to close the seacock when flushing your engine when on a trailer? Also, this comes with the entire kit right?

No, you don't have to close the seacock as there is an internal check valve. And yes, it comes with what you see which is the flushing adapter and two hose clamps. You will have to attach your garden hose to the white piece which protrudes from the side which if the hose if very deep in your bilge can be a problem. I found a short 4 ft hose extension which I attached and now I can easily grab that from outside the boat standing on the trailer. One suggestion is to, after cutting out a section of the engine's suction line so that the adapter will fit, apply some dish soap to both the inside of the hose as well as the outside of the barbed adapter. This will make getting it to go into the hose a lot easier. (Don't forget to slide the hose clamps onto the hose first!

If you turn on the hose with a lot of pressure won't all of this pressure then go into the engine/water pump/hoses etc?

I wouldn’t use full water pressure. My review and picture show’s the true design flaw in this plastic valve, don’t waste your money like I did three times!

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Perko 0456DP7 Flush Pro Engine Flushing and Winterizing Valve, 1 1/4"

Product ID: 305055910

Details

Brand
Perko
Exterior finish
Stainless
Inlet connection size
1.25 Inches
Item dimensions L x W x H
7.6 x 22.9 x
Material
Polymer Steel

💧1.25" universal hose fit

⚙️automatic fresh water flush

❄️winterizing made effortless

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Description

💦 Keep your engine fresh and ready—flush like a pro, winterize with ease!

UNIVERSAL 1 25 FIT - Seamlessly integrates with standard hoses and onboard generators for ultimate convenience.
WINTERIZE LIKE A PRO - Simplify your off-season prep with a valve designed to protect your engine from freezing damage.
EFFORTLESS FRESHWATER FLUSH - Connect your garden hose and let the valve do the work—no hassle, no mess.
PRESSURE ACTIVATED CHECK VALVE - Automatically pulls fresh water in, ensuring a thorough flush every time without manual intervention.
DURABLE STAINLESS STEEL POLYMER BUILD - Engineered to withstand marine environments and last season after season.

The Perko 0456DP7 Flush Pro Valve is a universal 1.25" marine flushing system designed for effortless freshwater flushing and winterizing of inboard engines. Featuring a durable stainless steel and polymer construction, it automatically activates with garden hose water pressure, simplifying engine maintenance and protecting your boat’s cooling system year-round.

Specifications

ASIN	B00144D86Y
Best Sellers Rank	#93,173 in Sporting Goods ( See Top 100 in Sporting Goods ) #37 in Boat Engine Motor Flushers
Brand	Perko
Brand Name	Perko
Connector Type	Threaded
Exterior Finish	Stainless Steel
Exterior finish	Stainless Steel
Global Trade Identification Number	00085226343414
Included Components	Perko 0456DP7 Flush Pro Engine Flushing and Winterizing Valve, 1 1/4"
Inlet Connection Size	1.25 Inches
Inlet Connection Type	Outside Diameter Flared
Inlet connection size	1.25 Inches
Inlet connection type	Outside Diameter Flared
Item Dimensions	7.6 x 22.9 x 30.5 centimeters
Item Type Name	Perko 0456DP7 Flush Pro Engine Flushing and Winterizing Valve, 1 1/4"
Item Weight	2 Grams
Item dimensions L x W x H	7.6 x 22.9 x 30.5 centimeters
Manufacturer	PERKO
Manufacturer Part Number	0456DP7
Material	Polymer, Stainless Steel
Material Type	Polymer, Stainless Steel
Model Number	0456DP7
Number of Items	1
Number of Packs	1
Number of Pieces	1
Outlet Connection Size	1.25 Inches
Outlet Connection Type	NPS
Size	1 1/4"
Specification Met	Meets Relevant Industry Specifications for Marine Valves
Thread Size	1 1/4 pulgadas
Thread Type	Female
UPC	085226343414
Unit Count	1.0 Count
Valve Type	Flush Valve

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9352651₫

Duties & taxes included

In stock

Sold byAmazon VietnamDelivered 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 Vietnam.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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