These are our most popular external catheters. If you do not find the size or type you need, please call or email. Hollister Incare Inview Silicone, Medium 29mm 97829 $1.07 Hollister Incare Inview Silicone, Intermediate 32mm 97832 $1.07 Hollister Incare Inview Silicone, Large 36mm 97836 $1.07 Mentor Clear Advantage Silicone, Small 23mm 6100 $1.69 Mentor Clear Advantage Silicone, Medium 28mm 6200 $1.69 Mentor Clear Advantage Silicone, Large 35mm 6400 $1.84 Mentor Freedom Cath Latex, Small 23mm 8000 $1.43 Mentor Freedom Cath Latex, Medium 28mm 8200 $1.43 Mentor Freedom Cath Latex, Intermediate 31mm 8205 $1.43 Mentor Freedom Cath Latex, Large 35mm 8400 $1.43 Mentor UroSan Plus Latex, Medium 28mm 7850 $1.07