Defender Standard

Features

• Improved weather sealing and draught proofing performance from extended enclosed end cap and asymmetrical vent arm form to BS 6375-1
• Lipped slider for enhanced smooth operation 
• Easy friction adjustment without metal to metal contact 
• Unique robust cam friction device eliminates the risk of screw misuse
• Ability to carry a load of up to 50kg top-hung and 40kg side-hung
• Asymmetric location system for reliable and accurate closure 
• Enclosed end cap to prevent ingress of debris and provide increased cavity tolerance
• Slot-hole-slot format allowing for easier vent adjustment
• Highline variants available for deeper profiles with cavities between 16mm and 18mm
• Available in ferritic 430* as standard or austenitic 304* stainless steel for enhanced corrosion resistance
• Restricted variant available 

Specification 

• 10 or 12 year mechanical guarantee**
• Endurance tested to 30,000 cycles 
• Corrosion tested to a minimum of 96 hours 
• Secured by Design approved 
• BBA Certification 

* Standard ferritic (was 430) to BS EN 10088-2 Grade 1.4016 or Austenitic (was 304) stainless steel to BS EN 10088-2 Grade 1.4301 for enhanced corrosion resistance 

** 10 year mechanical guarantee for Standard Ferritic and 12 year mechanical guarantee for Austenitic Stainless Steel