1.Are you factory? Yes,We have production line and manufacture over 6 years. 2.How is the hose improved? Yes,We are 99.8% no explosion, 98% no leaking ,1 year warranty. 3.How can I get sample? 1sets of 25ft is ready to sell within 1-2days. 4.Can I use my existing hose attachments on my hose? Yes,fits any standard 3/4 tap or 1/2 tap adaptor and Nozzle. 5.Can I buy a trial order of 100PCS ? What is the delivery time? Yes,Lead time 3-7days.