1) API Cert. available; 2) Size 4 1/2"- 20"; 3) Delivery on time; 4) Good Service and Reliable. We deal with the float shoe,float coupling with full range of the sizes and comply with API.Our sizes available as follows:5 1/2",7",9 5/8",13 3/8",16",17 1/2",20",etc.. Float shoe