This is the silicone straight reducer & 90° Elbow Reducer radiator hose, it has a smooth silicone rubber tube with a smooth cellulose bonded silicone rubber cover. 
It has a reinforcement of >2" I.D. 3 ply 120gm polyester, > 2" _ <4" I.D. 4 ply 120gm polyester and >4" I.D. 4 ply 120gm polyester.
The temperature range of this hose is -50 DEG C to +180 DEG C.
This hose is suitable for use in engine coolant systems it is resistant to glycol antifreeze and most corrosion inhibitors. (not oat type).
This is hose is available in Black, red and blue,
In the 2 tables below shows the inner diameter on both ends, the working pressure, The length of the straight reducer and the leg length for the elbow reducer 

Table 1 Straight Reducer

I.D 1 I.D 2 W.P Length
mm mm psi Bar mm
13 16 30 2 102
16 19 30 2 102
16 22 30 2 102
16 25 30 2 102
19 22 30 2 102
19 25 30 2 102
22 25 30 2 102
22 28 30 2 102
22 38 30 2 102
25 28 30 2 102
25 32 30 2 102
25 38 30 2 102
28 32 30 2 102
28 35 30 2 102
28 38 30 2 102
30 38 30 2 102
32 35 30 2 102
32 38 30 2 102
32 45 30 2 102
32 51 30 2 102
35 38 30 2 102
35 40 30 2 102
38 45 30 2 102
38 51 30 2 102
41 51 30 2 102
45 51 30 2 102
45 57 30 2 102
45 60 30 2 102
51 54 30 2 102
51 57 30 2 102
51 60 30 2 102
51 63 30 2 102
51 76 30 2 102
57 63 30 2 102
57 70 30 2 102
57 90 30 2 102
60 70 30 2 102
60 76 30 2 102
67 76 30 2 102
70 80 30 2 102
76 90 30 2 102
76 102 30 2 102
80 90 30 2 102
90 102 30 2 102
90 115 30 2 102
102 127 30 2 102

Table 2 90° Elbow Reducer

I.D 1 I.D 2 W.P Leg Length
mm mm psi Bar mm
13 16 30 2 152
13 19 30 2 152
16 19 30 2 152
16 22 30 2 152
16 25 30 2 152
19 25 30 2 152
19 28 30 2 152
22 28 30 2 152
22 38 30 2 152
25 28 30 2 152
25 32 30 2 152
25 38 30 2 152
28 32 30 2 152
28 35 30 2 152
28 38 30 2 152
32 35 30 2 152
32 38 30 2 152
32 45 30 2 152
35 38 30 2 152
35 40 30 2 152
38 45 30 2 152
38 51 30 2 152
45 51 30 2 152
51 54 30 2 152
51 60 30 2 152
51 63 30 2 152
51 76 30 2 152
57 63 30 2 152
57 70 30 2 152
60 70 30 2 152
60 76 30 2 152
63 76 30 2 152
67 76 30 2 152
70 80 30 2 152
76 90 30 2 152
76 102 30 2 152
80 90 30 2 152