Cheap And Discounts 6541-1 Boomless Spray Nozzle #10 Orifices 1/2" FPT 4.2 GPM @ 40 PSI (90° & 180° Caps) Replace 6541-01, 654101, 65411, 400-65411 Wholesale. Buy Directly From Merchant YMT Auto Parts Store Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.