What size riser fits in the bottom, 1/2” or 3/4”?

As one of the Sellers of this item, SprinklerHUT, It is important to note that this spray head has a 1/2 inch inlet. Please do not try to measure the opening with a ruler and consider that to be an accurate measure. Pipe thread is measured very differently, and this spray head along with spray heads from Hunter and Toro and just about every other major manufacturer, are all 1/2 inch inlet. The manufacturers websites are always a great source of information and you can confirm this at any of the manufacturers sites that I just mentioned. We have been asking Amazon to include that very important information in their bullet point descriptions of this product and thus far they are choosing to display other information that in our opinion is not as helpful to the Buyer.

What do you do with the blue screw type thing and the black cap (with a small screw on top of the cap)? How do you install it? What do they do?

Once you install the sprinkler head you need to unscrew the plug that comes installed in the head. Then you need to install what looks like a cap but is actually the part of the sprinkler that directs the water.

Can these set to a 90° angle for corners?

Yes, I have four of them on my garden corners set to 90 degrees.

Rain Bird 1804VAN 1800 Series Professional 4 Inch Pop Up Sprinkler Head, 4 Pack - Lawn Sprinkler with Adjustable 0-360 Degree Arc Nozzle Pattern, Up to 15 Ft Spray Distance, 1/2 in NPT Threaded Inlet

Product ID: 401717862

Details

Brand
Rain Bird
Colour
Black
Item dimensions L x W x H
5.7 x 5.7 x
Material
Stainless
Style
Classic

💧Adjustable 0°-360° spray arc

📏8'-15' variable spray distance

🔩Durable stainless steel spring

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€ 103.08

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💦 Elevate your lawn game with precision and power!

RELIABLE DURABILITY - Built with a strong stainless steel spring for consistent pop-up and retraction, minimizing maintenance and downtime.
EXTENDED REACH FLEXIBILITY - Variable spray distance from 8 to 15 feet lets you tailor watering zones for maximum efficiency and lush growth.
PRECISION WATERING CONTROL - Customize your irrigation with a fully adjustable spray arc from 0° to 360°, ensuring every inch of your landscape gets the perfect coverage.
COMPLETE 4 PACK CONVENIENCE - Includes 4 heads and 4 nozzles with screens, so you’re ready to upgrade multiple zones or share the green advantage with your neighbors.
PROFESSIONAL GRADE PERFORMANCE - Trusted by industry pros, this sprinkler delivers consistent, even coverage that keeps your lawn looking sharp and your water bill in check.

The Rain Bird 1804VAN is a professional-grade 4-inch pop-up sprinkler featuring an adjustable spray pattern from 0° to 360° and a variable spray distance of 8 to 15 feet. Equipped with a durable stainless steel spring for reliable operation, this 4-pack includes nozzles with screens for optimal performance, making it ideal for efficient, customizable irrigation in residential or commercial landscapes.

Specifications

ASIN	B081LJ593N
Brand Name	Rain Bird
Color	Black
Customer Reviews	4.5 4.5 out of 5 stars (860)
Global Trade Identification Number	00077985097622
Item Dimensions	5.7 x 5.7 x 15.2 centimeters
Manufacturer	Rain Bird
Material Type	Stainless Steel
Maximum Flow Rate	176.71 Cubic Feet Per Minute
Style Name	Classic
UPC	077985097622
Unit Count	1.00 Count

Reviews

G**O

Funcional

4.03.2026

R**N

These work great, give great coverage.

6.04.2026

J**A

Work great and do the job. Easy to adjust

28.07.2025

C**J

I bought these because I ran over one of my sprinkler heads with the lawnmower. I’ve never changed out a sprinkler head before so this was my first time and this product actually worked great. The spray distance was fantastic. The spray pattern you could adjust seems like it’s gonna hold up well and it was easy to install.

26.09.2025

A**.

Muy buen producto y efectivamente se puede ajustar de 0º a 360º

4.11.2025

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TrustScore 4.5 | 7,300+ reviews

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€ 103.08

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered 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 Croatia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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