• STEEL-LINE HT4 2211L Model- 303RTX Steel Line
  • STEEL-LINE HT4 2211L Model- 303RTX Steel Line
  • STEEL-LINE HT4 2211L Model- 303RTX Steel Line
  • STEEL-LINE HT4 2211L Model- 303RTX Steel Line
  • STEEL-LINE HT4 2211L Model- 303RTX Steel Line
  • STEEL-LINE HT4 2211L Model- 303RTX Steel Line
  • STEEL-LINE HT4 2211L Model- 303RTX Steel Line
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SteelLine HT4 2211L Model- 303RTX

SteelLine HT4 2211L Model- 303RTX

$39.95
$39.95
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Shipping calculated at checkout.

303RTX - Genuine BOSS HT4 2211L Remote Replacement

Genuine HT4 Steel-Line/BOSS Remote (303RTX). 2-button control, rolling code security, includes wall/visor mounts, battery installed. Suitable for BOSS 2211L & compatible openers.

What's Included:

  • 1 × brand-new Steel-Line HT4 remote (303RTX)
  • 1 × pre-installed 23A 12V battery
  • Keyring attachment, wall caddie and sun-visor clip
  • Clear programming instructions

Key Features:

  • Genuine Steel-Line / BOSS OEM remote for secure, long-term reliability.
  • Two-button design — control two doors or channels from one unit.
  • 303 MHz rolling-code technology for enhanced security against code-grabbing.
  • Includes keyring, visor clip and wall mount for flexible use.

Compatible with:

Remotes:

  • Boss HT4 2211L – Tilt, Overhead, and Panel Garage Door
  • Boss HT3 Blue LED v1
  • Boss HT3 Blue LED v2
  • Guardian 2211L
  • Guardian HT3 Blue LED
  • Steel-Line 2211L 1, 2, and 4 Button – Tilt, Overhead, and Panel Garage Door
  • Steel-Line HT3 Blue

Openers:

  • BOL4; BOL6 and BOL9
  • OL4, OL6 and OL9

Important Note: This remote is not compatible with original Steel-Line and Boss Roller Door (BRD1, BRD9)  For roller door openers, you will need to purchase a compatible generic remote such as the Code Ezy - Trinity 

Technical Specifications:

Frequency 303Mhz 
Code Type Rolling Code
Body Type Keyring, Sunvisor and Wall Remote
Case Colour Black
Number of Buttons 2
Button Colour Black with one Red and one Blue ring
Remote Dimensions 43.1 x 74.6 x 13.1mm
Range Up to 40m
Battery Type 23A Alkaline (Pre-Installed)
Access Type Tool Required
AS62368.1 Compliant Not Applicable
Warranty 12 Months Manufacturers Warranty

Downloads:

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Frequently Asked Questions

Is the remote pre-programmed or does it require setup before use?

Most remotes require programming to your opener before use. This process allows the remote to communicate securely with your specific garage or gate system.

If the product is listed as “compatible” rather than “genuine”, it will still need to be coded in the same way as your original remote.

Programming instructions are included with your order, and additional guides can be found on our Programming Instructions page or by contacting our support team for assistance.

How much does shipping cost?

Retail customers enjoy free standard shipping Australia-wide on orders over $10. Orders are sent as tracked parcels via a range of trusted couriers, including Australia Post, CouriersPlease, and Aramex.

For faster delivery, an Express Shipping option is available for $9.95.

International shipping rates vary depending on the destination — standard shipping starts from $20, and all options include tracking for your peace of mind.

Wholesale customers are charged a flat rate of $14.95 for all orders, with tracking provided once despatched.

How long will it take for the order to arrive?

For the East Coast of Australia, standard delivery typically takes 3–5 business days.

For the West Coast and Northern Territory, please allow 7–14 business days for standard delivery.

For more detailed information, please refer to our Shipping Policy.

What happens if I bought the wrong item?

If you think you have purchased the wrong item, please contact us and we will help start up the returns process and suggest correct replacement.

What happens if something is wrong with the remote?

Having Trouble Programming Your Remote?

Setting up your remote to your opener can sometimes be a little frustrating. If you’re having difficulty programming your remote, get in touch with us — our team is happy to help troubleshoot the issue.

All products are covered by a manufacturer’s warranty, which protects against any faults that may occur during the production process.

For more information about our warranty process, please refer to our Warranty Policy.