Lid for Cup for GSI Creos PS290 Mr. Procon Boy LWALid for Cup for GSI Creos PS290 Mr. Procon Boy LWA The Lid for Cup forPS290 is a must have accessory for any artist or hobbyist who owns the GSI Creos PS290 Mr. Procon Boy LWA (Trigger Type). This paint cup lid, also known as a cap, is designed specifically to fit the PS290 airbrush model, providing a perfect seal and preserving your paints and mediums for extended periods. Crafted with utmost precision and care, this Lid for PS290 is proudly made in