Lightweight body increases operator comfort and helps minimize downtime due to fatigue (all models).
Available gas valve improves shielding gas control (WP-9V).
Flexible neck improves torch control in limited-access areas (WP-9F).
Extended-reach flexible neck offers better joint access in a compact package (WP-9FL).
Combined flexible neck and valved model is ideal for welding in limited-access joints using power sources without gas solenoids (WP-9FV).
Pencil-style model requires no back cap for greater access to confined areas (WP-9P).