The Vandal Proof AA-ST1 is a sprinkler timer lock box designed to safeguard outdoor irrigation controllers from tampering, weather damage, and theft. Built with 12-gauge stainless steel and featuring a removable backplate for flexible mounting, this unit is ideal for recessed or surface installations in parks, schools, and public facilities. Proudly made in the USA and backed by a 10-year vandalism warranty.
Warranty Guide, Care Instructions & Spec Sheet - See Spec Sheet Tab Below
The AA-ST1 is a rugged, tamper-resistant lock box designed to protect outdoor sprinkler timers from vandalism, weather exposure, and unauthorized access. Constructed from 12-gauge stainless steel and secured with a protective padlock shroud, this enclosure is engineered for institutional-grade security. Its removable backplate allows for both recessed and surface-mounted installations, making it an ideal solution for municipal parks, educational campuses, and facility maintenance teams seeking versatile irrigation protection.
Product Features:
- Vandal Resistant Construction: Made from 12-gauge stainless steel with TIG welds and de-burred edges for long-term durability.
- Made in USA: Proudly fabricated in the United States using high-quality, corrosion-resistant materials.
- 10 Year Vandalism Warranty (12 Gauge Models): Covers damage caused by vandalism when unit is properly installed and locked.
- Protective Shroud for Padlock: Recessed design shields padlock from tampering and prying.
- Removable Backplate: Allows flexible installation — unit can be surface mounted or recessed to fit project needs.
- Spray & Drip Deflective: Weather-sealed construction protects electrical components from water intrusion.
- Bottom & Rear Conduit Access: Built-in openings accommodate up to 1/2" conduit (0.8" OD) from either direction.
- Surface Mounted: Securely fastens to walls or mounting plates using four 3/8” bolts (hardware not included).
- LEED Sustainable Materials: Constructed from recyclable stainless steel to support environmentally responsible design.
Dimensions & Weight:
- Exterior: 16 ⅛” W x 9 ½” H x 4 ¾” D
- Interior: 13” W x 9” H x 4 ⅜” D
- Rear Opening: 11 ½” W x 7 ½” H
- Weight: 19 lbs
Material & Finish:
- 12-gauge 304L Stainless Steel
- 12-gauge 316L Stainless Steel (recommended for saltwater or coastal applications)
All models come with a corrosion-resistant Satin #4 brushed stainless steel finish for a clean, professional look in outdoor environments.
Model Names:
- AA-EB-ST1-304L-12g
- AA-EB-ST1-316L-12g
Mounting Guidance:
Install using four 3/8” stainless steel bolts (not included). Use ¾” or thicker back bracing where possible. For partition walls or exposed installations, T-nuts or equivalent secure anchors are recommended. For optimal strength, units may be through-bolted back-to-back. Proper locking and anchoring are required for warranty eligibility.
Capacity & Compatibility:
Designed to enclose standard outdoor sprinkler timer boxes. Accommodates conduit runs up to 1/2" (0.8" OD) from the rear or bottom for added flexibility.
Warranty:
All 12-gauge models include a 10-Year Vandalism Warranty. If the enclosure is compromised by vandalism and was properly installed and locked, Vandal Stop will repair or replace the unit — a warranty unmatched in the industry.
Competitor Comparison:
Many competing enclosures are made from thin metal or plastic and lack secure locking systems or weather protection. The AA-ST1 provides superior durability with 12-gauge stainless steel, a lock shroud, and flexible mounting options. Competitors like Orbit or Irritrol do not offer comparable protection or warranty coverage.
Most of our products are Made to Order. When adding your item to the shopping cart there will be a "stock type" option indicating what is available for this particular item (see screenshot below). If an item is Stocked, a stocked option will appear, otherwise, only the "Made to Order" option will be visible. For our current estimated Production Lead times and related information see our Production Lead Times page for details.
Example Stock Type Selection Screenshot:
