Will this be a suitable replacement for PI21R3-16?

Yes. This is a direct replacement for all that start Pi21R such as your Pi21R3-16.

Is this channel 3 and 4

Don't know what you mean. This is needed for hooking up your dish to the receiver. It has no channels on it.

Will this replace a king ii power injector part :22037 on a king quest pro sattelite?

I don’t know. Probably ask the king customer service

Can this be used for hd24-500 reciever

Google your reciever model and ask, I believe it can,but look on your web browser and make sure.

At And T Formerly Directv 21 Volt Power Inserter All

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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4199 kr

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Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Power your DIRECTV experience with precision and ease!

RELIABLE POWER RANGE - Supports 100-120 V AC input, perfect for consistent home entertainment setups
COMPACT LIGHTWEIGHT - Sleek 3x6x4 inch design weighing just 11.8 oz fits discreetly in any media setup
PLUG PLAY SIMPLICITY - Standard F-type ports ensure effortless integration with your DIRECTV Slim Line Dish
SEAMLESS SIGNAL POWER BOOST - Optimized 2 dB insertion loss for crystal-clear DIRECTV reception
WIDE FREQUENCY COMPATIBILITY - Covers 2000 kHz to 2150 MHz for flawless satellite signal handling

The AT&T PI-21 Power Inserter is a compact, high-performance signal amplifier designed exclusively for DIRECTV Slim Line Dish antennas. Operating within a 2000 kHz to 2150 MHz frequency range and featuring a minimal 2 dB insertion loss, it ensures optimal signal strength and clarity. With standard F-type ports and support for 100-120 V AC input voltage, this device guarantees seamless integration and reliable power delivery for an enhanced satellite TV experience.

Specifications

ASIN	B005AME7Y8
Best Sellers Rank	#50,593 in Automotive ( See Top 100 in Automotive ) #104 in Power Inverters
Customer Reviews	4.6 4.6 out of 5 stars (1,527)
Date First Available	March 20, 2009
Item Weight	11.8 ounces
Item model number	PI21R1-03
Manufacturer	DIRECTV
Product Dimensions	3 x 6 x 4 inches

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