About Sample Charges and Sample Shipping. The sample charges of usd15 on the page is for reference only. Please contact customer service for details. What is the channel drains? Channel drains are a simple way of redirecting surface water away from the driveway. This prevents water getting into garages or onto garage areas. You will need to work out what type of channel drain to install, based on the amount of water which the area experiences. Once you have worked this out, take it into account when planning your driveway. Quick to install as the channel is only to be laid as per manual. Minimum manpower is required. Very low labour cost is incurred for installation. Installation is fast and simple and not dependent on huge manpower availability. No water proofing is required. No hidden cost during installation of channels. Multiple colors for your choice, or customized color is also available as per pantone code. ITEM NO. IN. W. OUT W. H L U80-60-600 80 110 60 600 U100-60-1000 100 150 60 1000 U140-60-1000 140 180 60 1000 U100-100-1000 100 140 100 1000 U100-150-1000 100 140 150 1000 U100-200-1000 100 140 200 1000 U150-200-1000 150 190 200 1000 U150-250-1000 150 190 250 1000 U150-300-1000 150 190 300 1000 U200-80-1000 200 240 80 1000 U200-200-1000 200 240 200 1000 U200-250-1000 200 240 250 1000 U200-300-1000 200 240 300 1000 U250--250-1000 250 300 250 1000 U250--300-1000 250 290 300 1000 U300--300-1000 300 340 300 1000 U300--350-1000 300 340 350 1000 U300--400-1000 300 340 400 1000 U400--400-1000 400 460 400 1000 1. Can I get free samples? A: Yes. We can provide you the free samples, but you need to bear their own delivery costs. 2. Can I request to change the form of packing and transportation? A: Yes. We can change the form of the packing and transportation according to your request, but you can have to bear their own costs incurred during this period and the spreads. 3. Can I request to advance the shipment? A: Yes. It should depend on whether there is sufficient inventory in our warehouse. 4. Can I have my own logo on the product? A: Yes. You can send us your drawing and we can make your logo, buy you have to bear their own cost. 5. Can you produce the products according to my own drawings? A: Yes. We can produce the products according to your drawings that will be most satisfy you.